chansrakoo, W. ., somnuek, W. ., taewpeay, P. ., panphoom, A. ., thunhaw, M. . and srisawangwong, S. . (2021) “Development Soybean Combine harvester attached to Small Tractor”, Thai Agricultural Research Journal, 39(3). doi: 10.14456/thaidoa-agres.2021.21.