Nakornsri, Komsan, Prasan Vongsaroj, and Somran Inthalang. 1999. “Effects of Rates and Flooding Times of Rice Straw on Weed Control Growth and Yield of Rice under Zero Tillage Condition”. Agriculture and Natural Resources 33 (3). Bangkok, Thailand:295-302. https://li01.tci-thaijo.org/index.php/anres/article/view/240445.