N. Shaharudin, N. Nayan, M. Hashim, M. S. Y. Che Ngah, Y. Saleh, and K. Ismail, “Pemetaan Kualiti Air Tasik Untuk Aktiviti RekreasiDi Negeri Perak: Kajian Kes Taman Tasik Taiping: Lake Water Quality Mapping For RecreationalActivities: A Case Study Taiping Lake Garden”, PERS, vol. 5, no. 3, pp. 31–44, Dec. 2013.