Korntong Poungprakhon และ Chalaerm Maswanna; Tongpoon Paenghakit; Prayad Pollok; Pranom Prakit. (2000) Effect of Fertilizer on Competition of Job's Tear and Weeds under different Environments. <i>Thai Agricultural Research Journal</i>, <i>18</i>(3), 224-232.Korntong Poungprakhon และ Chalaerm Maswanna; Tongpoon Paenghakit; Prayad Pollok; Pranom Prakit. "Effect of Fertilizer on Competition of Job's Tear and Weeds under different Environments". Thai Agricultural Research Journal 18 (2000):224-232.Korntong Poungprakhon และ Chalaerm Maswanna; Tongpoon Paenghakit; Prayad Pollok; Pranom Prakit. Effect of Fertilizer on Competition of Job's Tear and Weeds under different Environments. Department of Agriculture:ม.ป.ท. 2000.