Varothai Sunalai. 2010. A simulation of vehicle fleet management system for network of NGV service stations. , Mahidol University;
Varothai Sunalai. (2010) A simulation of vehicle fleet management system for network of NGV service stations . Mahidol University/Bangkok.
Varothai Sunalai. A simulation of vehicle fleet management system for network of NGV service stations. . Bangkok:Mahidol University, 2010.
Varothai Sunalai. (2010) A simulation of vehicle fleet management system for network of NGV service stations . Mahidol University/Bangkok.