Wuttiphol chansrakoo และ Wuttiphol chansrakoo; Wantana somnuek; Pirom taewpeay; Akkaparp panphoom; Mongkol thunhaw; Sittipong srisawangwong. (2021) Development Soybean Combine Harvester Attached to Small Tractor. <i>Thai Agricultural Research Journal</i>, <i>39</i>(3), 260-272.Wuttiphol chansrakoo และ Wuttiphol chansrakoo; Wantana somnuek; Pirom taewpeay; Akkaparp panphoom; Mongkol thunhaw; Sittipong srisawangwong. "Development Soybean Combine Harvester Attached to Small Tractor". Thai Agricultural Research Journal 39 (2021):260-272.Wuttiphol chansrakoo และ Wuttiphol chansrakoo; Wantana somnuek; Pirom taewpeay; Akkaparp panphoom; Mongkol thunhaw; Sittipong srisawangwong. Development Soybean Combine Harvester Attached to Small Tractor. Department of Agriculture:ม.ป.ท. 2021.