Wongmetha, O., Chot-im-udom, N., Youngpong, S. and Ruangkul, T. 2019. The Influence of Plant Growth Regulators on Increase of Microtuber Induction in Potato. Thai Agricultural Research Journal. 37, 1 (Jun. 2019), 70–91. DOI:https://doi.org/10.14456/thaidoa-agres.2019.8.