ET. AL., G. S. S. , . Socio-economic Life Cycle Assessment of Silangit Airport in Lake Toba Area. Turkish Journal of Computer and Mathematics Education (TURCOMAT), [S. l.], v. 12, n. 8, p. 3117–3124, 2021. Disponível em: https://turcomat.org/index.php/turkbilmat/article/view/4153. Acesso em: 6 may. 2024.