Siriwattananon N. The construction and performance testing of Indian gooseberry (Phyllanthus emblica) tapping machine with crank mechanism. RMUTSB Acad. J. [internet]. 2020 Dec. 29 [cited 2026 Apr. 22];8(2):215-26. available from: https://li01.tci-thaijo.org/index.php/rmutsb-sci/article/view/242250