halimatul abd ghani, alia a. alghwiri, hafifi hisham, haidzir manaf.  (2023).  lower limb muscle fatigue alters spatiotemporal gait parameters and turning difficulty characteristics in parkinsons disease.  - annals of rehabilitation medicine arm.  282-290. 

huda aliah mohd iqbal, wei sheng ho, asfarina zanudin, hafifi hisham, nor azlin mohd nordin.  (2023).  effects of video game-based therapy in an adolescent with cerebral palsy: a case report.  - world journal of clinical cases.  8595-8602.