TOUNMANYSONE, T., BANMANIVONG, L., VONGKEO, S., THONLAMEE, K., CHOUNLAMOUNTRY, L. and LALAIMTHAVISAY, D. 2021. Estimating the Willingness of Urban Residents in Savannakhet Province to Pay for the Dongnatad Protected Area Conservation. Souphanouvong University Journal Multidisciplinary Research and Development . 7, 1 (Jun. 2021), 177–186.