Bovsh, Liudmyla, Nataliia Jgutashvili, and Oksana Poltavska. “INTEGRATING SUSTAINABLE MARKETING INTO LEAN STARTUP MODELS FOR ECO-HOTEL CREATION”. Current Problems of Sustainable Development 2, no. 4 (July 15, 2025): 140–148. Accessed July 28, 2026. https://journals.csr.com.ua/index.php/sustainability/article/view/125.