Tham Cheong Sheng, Mariah Awang and Mohammad Ashraf Abdul Rahman (2017) “Preliminary Study of Energy and Cost Saving Potential of Lighting System in Teaching Building”, Politeknik & Kolej Komuniti Journal of Social Sciences and Humanities, 1(1), pp. 160–166. Available at: https://app.mypolycc.edu.my/journal/index.php/PMJSSH/article/view/139 (Accessed: 22 November 2024).