Kongsamai, Buppa, Jintana Junjerm, and Somnuk Promdang. “Seed Alpha-Tocopherol and Oil Content in Sunflower (Helianthus Annuus L.) Inbreds, Open-Pollinated Varieties and Commercial Hybrids  ”. Thai Agricultural Research Journal 28, no. 3 (December 31, 2010): 317. Accessed May 18, 2024. https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/91657.