«A comparison study of patients attendance to klinik rawatan keluarga pergigian (krkg) hospital universiti sains malaysia (Hospital USM): A study from the year 2017 to the year 2020» (2024) Journal of Numerical Optimization and Technology Management, 1(2), сс. 77–84. доступно на: https://shmpublisher.com/index.php/jnotm/article/view/319 (просмотрено: 25 август 2026).