Thanh, Pham, 		Ngoc, Dang, 		Van Truong, Tran, 		Cao Huan, Nguyen, AND 		Vu Viet Quan, Du.
" Evaluate the Economic Value of the Recreational Services  of the Hon Yen Complex in Phu Yen Province" <em>VNU Journal of Science: Earth and Environmental Sciences</em> [Online], Volume 41 Number 1 (28 February 2025)