Heung, Vincent C.S.. Dimensions of environmentalism: a study of policies and good practices in the Hong Kong hotel industry / Vincent C. S. Heung, Pandora S. k. Pun. - 2013. // Journal of China tourism research. Vol. 9 (2013), No. 1-2-3-4
Stalcup, Lawrence D.. Human resources practices for environmental sustainability in lodging operations / Lawrence D. Stalcup, Cynthia S. Deale, Samuel Y. Todd. - 2014. // Journal of human resources in hospitality and tourism. Vol. 13 (2014), No. 4