chiew yong ng, jia ying chai, jhi biau foo, nor hamdan mohamad yahaya, ying yang, min hwei ng, jia xian law.  (2021).  potential of exosomes as cell-free therapy in articular cartilage regeneration: a review.  - international journal of nanomedicine.  6749-6781. 

shamsul sulaiman, shiplu roy chowdhury, mh busra fauzi, rizal abdul rani, nor hamdan mohamad yahaya, yasuhiko tabata, yosuke hiraoka, ruszymah binti haji idrus, ng min hwei.  (2020).  3d culture of mscs on a gelatin microsphere in a dynamic culture system enhances chondrogenesis.  - international journal of molecular sciences.  1-17. 

munayati munajat, nor azlin mohd nordin, nor hamdan mohd yahaya, ahmad hafiz zulkifly.  (2019).  effects of low-intensity pulsed ultrasound on recovery of physical impairments, functional performance and quality of life after total knee arthroplasty: protocol for experimental study.  - medicine.  1-7. 

c.c. ude, b, b.s. shamsul, m.h. nga, h.c. chen, htwe ohnmard, s.n. amaramalard, a.r. rizal, a. johan, m.y. norhamdan, m. azizi, b.s. aminuddin, b.h.i. ruszymah.  (2018).  long-term evaluation of osteoarthritis sheep knee, treated with tgf-beta 3 and bmp-6 induced multipotent stem cells.  - experimental gerontology.  43-51. 

cc ude, mh ng, ch chen, o htwe, ns amaramalar, s hassan, i djorjevic, ra rani, j ahmad, nm yahya, ab saim, rb hj idrus.  (2015).  improved functional assessment of osteoarthritic knee joint after chondrogenically induced cell treatment.  - osteoarthritis and cartilage.  1294-1306. 

kien-hui chua, wan kamarul zaman wan safwani, adila a hamid, siti khadijah shuhup, nor hazla mohd haflah, nor hamdan mohd yahya.  (2014).  retropatellar fat pad-derived stem cells from older osteoarthritic patients have lesser differentiation capacity and expression of stemness genes.  - cytotherapy.  599-611. 

kien-hui chua, ting-hun lee, kamini nagandran, nor hamdan md yahaya, chew-tin lee, eddie tan ti tjih and ramlan abdul aziz.  (2013).  edible birds nest extract as a chondro-protective agent for human chondrocytes isolated from osteoarthritic knee: in vitro study.  - bmc complementary and alternative medicine.  13:19. 

hamoud al faqeh, bin mohamad yahya nor hamdan, hui cheng chen, bin saim aminuddin, bt hj idrus ruszymah.  (2012).  the potential of intra-articular injection of chondrogenic-induced bone marrow stem cells to retard the progression of osteoarthritis in a sheep model.  - experimental gerontology.  47(6):458-464. 

munirah sha`ban, samsudin osman cassim, nor hamdan mohd yahya, aminuddin saim, ruszymah bt hj idrus.  (2011).  sox-9 transient transfection enhances chondrogenic expression of osteoarthritic human articular chondrocytes in vitro: preliminary analysis.  - tissue engineering and regenerative medicine.  8(1):32-41.