Rawangwong S, Homkhiew C, Sani S, Rodjananugoon J, Tehyo M. 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. Pnu Sci J [internet]. 2019 Aug. 8 [cited 2026 Aug. 27];12(2):97-112. available from: https://li01.tci-thaijo.org/index.php/pnujr/article/view/207047