ISTI FADAH, HANDRIYONO, DIANA S TOBING & ISTATUK BY. STRATEGY FOR IMPROVING PERFORMANCE OF INFORMAL SECTORS BASED ON ECOWISATA IN WHITE SAND BEACH TOURISM IN SITUBONDO DISTRICT. International Journal of Research Science and Management, [S. l.], v. 6, n. 8, p. 27–33, 2019. Disponível em: https://ijrsm.com/index.php/journal-ijrsm/article/view/241. Acesso em: 24 sep. 2026.