Chareinsak Rojanaridpiched, Piyavuth Pulsanguan, Somyod Phuddachareon, Jamlong Jeamjamnanja, & Witthaya Saengkaewsook. (1987). Study on Planting Season of Cassava. Agriculture and Natural Resources, 21(2), 119–125. retrieved from https://li01.tci-thaijo.org/index.php/anres/article/view/242590