Chalermglin, P., S. Subhadrabandhu, C. Thongtham, and P. Teeravuthichai. “ Method of applying ethephon for hastening fruit maturation”. Agriculture and Natural Resources, vol. 14, no. 1, Jan. 1980, pp. 8-13, https://li01.tci-thaijo.org/index.php/anres/article/view/240833.