«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». Journal of Numerical Optimization and Technology Management, bd. 1, nr. 2, april 2024, s. 77-84, https://shmpublisher.com/index.php/jnotm/article/view/319.