mohamad khairulamirin md razali, abdul hadi abd rahman, masri ayob, razman jarmin, liu chian yong, muhammad maaya, azarinah izaham, raha abdul rahman.  (2024).  an improved saturation degree-based constructive heuristic for master surgery scheduling problem: case study.  - ieee access.  44748-44772. 

lee qz, nik ritza k, mohd firdaus ca, muhammad m.  (2023).  the impact of laparoscopic intraperitoneal instillation of ropivacaine in enhancing respiratory recovery and reducing acute postoperative pain in laparoscopic sleeve gastrectomy: a double-blinded randomised control; relieve trial.  - obesity surgery.  3141-3146. 

nik izyan syaizana nik mat, chih nie yeoh, muhammad maaya, jaafar md zain, joanna su min ooi.  (2022).  effects of sugammadex and neostigmine on post-operative nausea and vomiting in ent surgery.  - frontiers in medicine.  1-6. 

nurfadilah mahli, jaafar md zain, siti nidzwani mohamad mahdi, yeoh chih nie, liu chian yong, ahmad fairuz abdul shokri, muhammad maaya.  (2021).  the performance of flexible tip bougie in intubating simulated difficult airway model.  - frontiers in medicine.  1-6. 

k. zainuddin, d. azmi, e. kamaruzaman, a. izaham, n. h. s. hadzrami, m. maaya.  (2016).  comparison between intravenous propofol 0.5 mg/kg and 1.0 mg/kg at the end of surgery in reducing incidence of emergence delirium in children after sevoflurane-based anaesthesia.  - anesthesia and analgesia.  362-363. 

rufinah teo, norsidah abdul manap, albert navin durairatnam, muhammad maaya.  (2012).  effectiveness of intra-operative ondansetron in reducing post-operative intrathecal morphine-induced pruritus in patients undergoing caesarean section.  - british journal of anaesthesia.  108 (S2): ii210.