Sopit Jaipala และผู้แต่งคนอื่นๆ. (2012) Effect of Glyphosate Herbicide Spraying Period on Growth and Yield of Cassava Variety Rayong 11. <i>Thai Agricultural Research Journal</i>, <i>30</i>(2), 186-197.Sopit Jaipala และผู้แต่งคนอื่นๆ. "Effect of Glyphosate Herbicide Spraying Period on Growth and Yield of Cassava Variety Rayong 11". Thai Agricultural Research Journal 30 (2012):186-197.Sopit Jaipala และผู้แต่งคนอื่นๆ. Effect of Glyphosate Herbicide Spraying Period on Growth and Yield of Cassava Variety Rayong 11. Department of Agriculture:ม.ป.ท. 2012.