WINARNO, G. D.; AVENZORA, R.; BASUNI, S.; BISMARK, M. The Planning of Ecotourism Opportunities Spectrum of Elephant Related Ecotourism Activities on Sumatran Elephant Home Range in Bukit Barisan Selatan National Park Province Lampung Indonesia. International Journal of Sciences: Basic and Applied Research (IJSBAR), [S. l.], v. 22, n. 2, p. 130–148, 2015. Disponível em: https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/3947. Acesso em: 23 jul. 2024.