Siriwan Burikam, Vanida Chommalee, and Supat Attathom. “Effects of Plant Growth Regulators on Papayas (Carica Papaya) Cultured in vitro”. Agriculture and Natural Resources, vol. 22, no. 5, Dec. 1988, pp. 1-6, https://li01.tci-thaijo.org/index.php/anres/article/view/242559.