Krualee, S., S. Sdoodee, T. Eksomtramage, and V. Sereeprasert. “Correlation and Path Analysis of Palm Oil Yield Components in Oil Palm (Elaeis guineensis Jacq.)”. Agriculture and Natural Resources, vol. 47, no. 4, Aug. 2013, pp. 528-33, https://li01.tci-thaijo.org/index.php/anres/article/view/243092.