Kosiyachinda, S. and Jangjanekij, P. (1980) “Design and Fabrication of Papaya Fruit Picker”, Agriculture and Natural Resources. Bangkok, Thailand, 14(2), pp. 54–56. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/240840 (accessed: 17 September 2026).