Burapha University, Burapha University, affiliation not provided to SSRN, affiliation not provided to SSRN, affiliation not provided to SSRN, Chiang Mai University, affiliation not provided to SSRN, affiliation not provided to SSRN, Government of the United States of America - Bee Research Laboratory, USDA-ARS, Chiang Mai University, Chiang Mai University, Burapha University, Burapha University, Chiang Mai University, Burapha University, Burapha University, Burapha University and Burapha University