Dung, Bui Dai, 		Thinh, Nguyen, 		Ha, Nguyen, AND 		Hanh, Nguyen.
" Valuing Heritage as a Public Good Initial Application  to Zonal Travel Cost Method in Hoi An, Vietnam" <em>VNU JOURNAL OF ECONOMICS AND BUSINESS</em> [Online], Volume 35 Number 3 (24 September 2019)