Tanawat Worawattawechai และผู้แต่งคนอื่นๆ. (2017) Cuckoo search and enhanced artificial bee colony heuristic methods for vehicle routing problem with backhaul and time window constraints. Chulalongkorn University:ม.ป.ท.Tanawat Worawattawechai และผู้แต่งคนอื่นๆ. 2017. Cuckoo search and enhanced artificial bee colony heuristic methods for vehicle routing problem with backhaul and time window constraints. ม.ป.ท.:Chulalongkorn University;Tanawat Worawattawechai และผู้แต่งคนอื่นๆ. Cuckoo search and enhanced artificial bee colony heuristic methods for vehicle routing problem with backhaul and time window constraints. ม.ป.ท.:Chulalongkorn University, 2017. Print.