Maidatchan, S., W. Thongthaksin, S. Sachart, and A. Adthalungrong. “Propagation Technology of Paphiopedilum bellatulum      ”. Thai Agricultural Research Journal, vol. 30, no. 3, Dec. 2012, pp. 248-57, doi:10.14456/thaidoa-agres.2012.15.