Phrakhrupaphatsornsantitham, A. . Bumroong-eir, D. Srikote, and K. . Srikote, “The Learning Process of Chemical Reduction and Use of Chemicals in Safety Radius of Ban Non Sawang Community, Sao Lao Sub-district, Nong Kung Si District, Kalasin Province”, IARJ, vol. 1, no. 5, pp. 17–36, Oct. 2021.