Somsak Srisombun และ Montha Nuntapunt. (2001) Soybean Variety Improvement Using Mutation Techniques. <i>Thai Agricultural Research Journal</i>, <i>19</i>(3), 185-195.Somsak Srisombun และ Montha Nuntapunt. "Soybean Variety Improvement Using Mutation Techniques". Thai Agricultural Research Journal 19 (2001):185-195.Somsak Srisombun และ Montha Nuntapunt. Soybean Variety Improvement Using Mutation Techniques. Department of Agriculture:ม.ป.ท. 2001.