Pongthipun Phuengphai และ Napaporn Kheangkhun; Jutamart Sringam; Waraporn Kumpinit; Amnauy Wattanakornsiri. (2020) Contaminated Heavy Metals in Rice of Surin Province, Thailand. <i>Naresuan University Journal: Science and Technology</i>, <i>28</i>(1), 55-64.Pongthipun Phuengphai และ Napaporn Kheangkhun; Jutamart Sringam; Waraporn Kumpinit; Amnauy Wattanakornsiri. "Contaminated Heavy Metals in Rice of Surin Province, Thailand". Naresuan University Journal: Science and Technology 28 (2020):55-64.Pongthipun Phuengphai และ Napaporn Kheangkhun; Jutamart Sringam; Waraporn Kumpinit; Amnauy Wattanakornsiri. Contaminated Heavy Metals in Rice of Surin Province, Thailand. Naresuan University Graduate School:ม.ป.ท. 2020.