Khajohnwit Panayangnoi และ Surakitti Srikul; Chai Korawis. (1997) Study on Some Morphologies of Oil Palm Seeds. <i>Thai Agricultural Research Journal</i>, <i>15</i>(3), 185-193.Khajohnwit Panayangnoi และ Surakitti Srikul; Chai Korawis. "Study on Some Morphologies of Oil Palm Seeds". Thai Agricultural Research Journal 15 (1997):185-193.Khajohnwit Panayangnoi และ Surakitti Srikul; Chai Korawis. Study on Some Morphologies of Oil Palm Seeds. Department of Agriculture:ม.ป.ท. 1997.