Rawangwong, S., Homkhiew, C., Sani, S., Rodjananugoon, J. and Tehyo, M. (2019) “Efficiency Improvement in Assembly Rubber Wooden Toys Using Motion and Time Study and Principles of Ergonomics: A Case Study of a Sample Factory: 1 Faculty of Engineering, Rajamangala University of Technology Srivijaya, 2 Faculty of Engineering, Princess of Naradhiwas University”, Princess of Naradhiwas University Journal, 12(2), pp. 97–112. available at: https://li01.tci-thaijo.org/index.php/pnujr/article/view/207047 (accessed: 28 August 2026).