Le, Anh Toai, and Hoang Son Nguyen. “Ecotourism Research Progress: A Bibliometric Analysis (period 2002–2022) Using VOSviewer Software”. Turyzm/Tourism 33, no. 2 (November 24, 2023): 71–81. Accessed May 11, 2024. https://czasopisma.uni.lodz.pl/tourism/article/view/20952.