E. Shamshiry, M. Mokhtar, A.-M. Abdulai, I. Komoo, and N. Yahaya, “COMBINING ARTIFICIAL NEURAL NETWORK- GENETIC ALGORITHM AND RESPONSE SURFACE METHOD TO PREDICT WASTE GENERATION AND OPTIMIZE COST OF SOLID WASTE COLLECTION AND TRANSPORTATION PROCESS IN LANGKAWI ISLAND, MALAYSIA”, Malaysian J. Sci., vol. 33, no. 2, pp. 118–140, Dec. 2014.