Peerapat Roongsattham, Pradit Pongtongkam, Amara Thongpan, Lily Kaveeta, Poontariga Harinasut, and Surin Peyachoknagul, “Hd1, Hd3a, and Hd6 Genes : Possible DNA Methylation Roles in Photoperiod Sensitive Gene Regulation of Rice KDML 105 (Oryza sativa L.)”, Agr. Nat. Resour., vol. 40, no. 2, pp. 462–471, Apr. 2006.