Pichpibul, T. “Modified Coral Reef Optimization Algorithm for Motorcycle Routing of Food Delivery Service26in Thailand”. INTERNATIONAL SCIENTIFIC JOURNAL OF ENGINEERING AND TECHNOLOGY (ISJET), vol. 3, no. 2, Dec. 2019, pp. 26-33, https://ph02.tci-thaijo.org/index.php/isjet/article/view/215723.