P. Pongtongkam, R. Lervichai, S. Apisitiwanich, S. Peyachoknagul, K. Klakhaeng, P. Sripichit, N. singburaudom, S. Fungfupong, and P. Srinives. “Anther Culture of Hybrid Rice (Khao Dawk Mali 105/Skybonnet)”. Agriculture and Natural Resources, vol. 29, no. 2, June 1995, pp. 158-66, https://li01.tci-thaijo.org/index.php/anres/article/view/241311.