Wongsri, Ornrat, Krerkchai Thanarak, Surakitti Srikul, Chumpol Chawana, Vichanee Omzubsin, Yingniyom Riyapan, Sujittra Promchue, and Suvimol Kolasuek. 2019. “Breeding of Oil Palm for High Yield : Hybrid Variety Suratthani 7”. Thai Agricultural Research Journal 37 (1):78-92. https://doi.org/10.14456/thaidoa-agres.2019.10.