Konstantinova, Elina, Aija Peršēvica, and Agnese Jeņina. “SUSTAINABLE, SMART AND RESPONSIBLE NATURE PARK TOURISM”. Journal of Regional Economic and Social Development 13 (December 19, 2021): 48–56. Accessed July 22, 2024. https://journals.rta.lv/index.php/JRESD/article/view/5424.