Mohd Hussain, M. R., N. S. Rabe, I. Zen, I. Tukiman, R. S. Muda, and A. F. Mamat. “AN ASSESSMENT ON EARLY WARNING SYSTEM: INITIAL SURVEY ANALYSIS”. PLANNING MALAYSIA, vol. 17, no. 10, Sept. 2019, doi:10.21837/pm.v17i10.653.