jefferson khai-qiang ng, ponnusamy subramaniam, fuad ismail, mahadir ahmad, nur liyana shamsudin,.  (2022).  life review intervention: a systematic review of its feasibility among persons with cancer.  - journal of pain and symptom management.  e235-e249. 

noor azizah abdul wahab, mohd makmor bakry, mahadir ahmad, zaswiza mohamad noor, adliah mhd ali.  (2021).  exploring culture, religiosity and spirituality influence on antihypertensive medication adherence among specialised population: a qualitative ethnographic approach.  - patient preference and adherence.  2249-2265. 

siti munirah abdul basir, zahara abdul manaf, mahadir ahmad, nor ba-yah abdul kadir, wan nur khairunnisa ismail, arimi fitri mat ludin, suzana shahar.  (2021).  reliability and validity of the malay mindful eating questionnaire (meq-m) among overweight and obese adult.  - international journal of environmental research and public health.  1-14. 

mohd izzuddin hairol, shaari ahmad, sharanjeet kaur, lei hum wee, fauziah abdullah, and mahadir ahmad.  (2021).  incidence and predictors of postpartum depression among postpartum mothers in kuala lumpur, malaysia: a cross-sectional study.  - plos one.  1-12. 

mohd izzuddin hairol, naufal nordin, jacqueline png, sharanjeet-kaur, sumithira narayanasamy, manisah mohd-ali, mahadir ahmad & masne kadar.  (2021).  association between reduced visual-motor integration performance and socioeconomic factors among preschool children in malaysia: a cross-sectional study.  - plos one.  1-16. 

mahadir ahmad , nur syafiqa balqis md. din , ruthra devi tharumalay , normah che din ,norhayati ibrahim , noh amit , nor mf farah, rose azzlinda osman, mohamed faisal abdul hamid, ibnor azli ibrahim, ezad azraai jamsari, mohd rizal palil & sha'ari ahmad.  (2020).  the effects of circadian rhythm disruption on mental health and physiological responses among shift workers and general population.  - international journal of environmental research & public health.  1-16. 

ernieda hatah, nadiah rahim, mohd makmor-bakry, noraida mohamed shah, noraini mohamad, mahadir ahmad, nor hasni haron, choe sze hwe, angeline tan meng wah, fahmi hassan, shakirin shaik rahmat, sarah ann robert, noraidatulakma abdullah.  (2020).  development and validation of malaysia medication adherence assessment tool (mymaat) for diabetic patients.  - plos one.  1-17. 

normah che din, liana mohd nawi, shazli ezzat ghazali, mahadir ahmad, norhayati ibrahim, zaini said, noh amit and ponnusamy subramaniam.  (2019).  preliminary analysis of the factor structure, reliability and validity of an obsessive-compulsive disorder screening tool for use with adults in malaysia.  - international journal of environmental research and public health.  1-11. 

norhayati ibrahim, normah che din, mahadir ahmad, noh amit, shazli ezzat ghazali, suzaily wahab, nor ba'yah abdul kadir, fatimah wati halim, mohd radzi tarmizi a. halim.  (2019).  the role of social support and spiritual wellbeing in predicting suicidal ideation among marginalized adolescents in malaysia.  - bmc public health.  1-8. 

norhayati ibrahim, hui chien 0ng, suzaily abd wahab, normah che din, mahadir ahmad, noh amit, mohd suhaimi mohamad.  (2016).  psychological wellbeing among caregivers of schizophrenia patients in malaysia.  - international journal of psychology.  678-679. 

rachael powell, mahadir ahmad, fiona j. gilbert, david brian & marie johnston.  (2015).  improving magnetic resonance imaging (mri) examinations: development and evaluation of an intervention to reduce movement in scanners and facilitate scan completion.  - british journal of health psychology.  449-465. 

ang, y; mahadir, a; poh, b.  (2014).  sleep deprivation and obesity among malay children and adolescents.  - obesity reviews.  128. 

rosdinom razali, lim jean-li, aida jaffar, mahadir ahmad, shamsul azhar shah, norhayati ibrahim, normah che din, nik ruzyanei nik jaafar, marhani midin, hatta sidi, saharudin ahmad.  (2014).  is the bahasa malaysia version of the montreal cognitive assessment (moca-bm) a better instrument than the malay version of the mini mental state examination (m-mmse) in screening for mild cognitive i.  - comprehensive psychiatry.  55(S1):S70-S75.