Chittihunsa, Titiya. 1997. “The Effect of Some Crude Plant Extracts Antimycotics Growth of the Hyphae of Ascosphaera apis, the Agent Causing chalkbrood Disease in Apis millifera”. Thai Agricultural Research Journal 15 (3):194-206. https://doi.org/10.14456/thaidoa-agres.1997.19.