HARUN, I. .; POHAN, S.; KURNIAWATI, D. . Constructivism Analysis of Mandailing Coffee as a Coffee Brand Known in the World. Journal of Social Interactions and Humanities, [S. l.], v. 2, n. 3, p. 311–318, 2023. DOI: 10.55927/jsih.v2i3.7290. Disponível em: https://journal.formosapublisher.org/index.php/jsih/article/view/7290. Acesso em: 17 jul. 2026.