Simulated Annealing Algorithm Performance on Two-Echelon Vehicle Routing Problem-Mapping Operation with Drones. - Rahmad Inca Liperda; A. A. N. Perwira Redi; Nandini N. Sekaringtyas; Handina B. Astiana; Bertha Maya Sopha; Anna Maria Sri Asih (IEEM, 2020)