WorakamolWisetsri, Maaz Ud Din, Dr. Thanyanant Chansongpol, Dr. Keratiwan Kalayanamitra, Dr. Chanyanan Somtawinpongsai. A Study of Factors Effecting to Work Efficiency of Employees (Labor Group) in Thai Leather Industry to Success. J Arch.Egyptol 2020, 17, 6099 - 6106.