Nur Izzati Syahirah Mohd Azmi, Mohd Syafiq Syazwan Mustafa, Mohammad Ashraf Abdul Rahman, Nurdalila Saji, Mohd Fahmi Abdul Rahman, Ahmad Rusyadi Jumat. An Investigation of Toilet Cleanliness Assessment and People Monitoring at Rest and Service Area (R&R) X and Y. jts. 2023;15(2):64-76. Accessed June 30, 2024. https://publisher.uthm.edu.my/ojs/index.php/JTS/article/view/16264