Che Ngah, M. S. Y., Saleh, Y., Hashim, M., Nayan, N. and Ibrahim, H. (2011) “Penggunaan Sumber Air Bersih dalamPerkhidmatan Mencuci Kereta di Tanjong Malim,Perak dan Hulu Bernam, Selangor: Clean Water Usage in Car Wash Services in Tanjong Malim,Perak and Hulu Bernam, Selangor”, Perspektif Jurnal Sains Sosial dan Kemanusiaan, 3(2), pp. 75–85. Available at: https://ejournal.upsi.edu.my/index.php/PERS/article/view/1601 (Accessed: 22 November 2024).