YANDRI, Pitri. Consumer Preferences for Coconut Shell Charcoal in Suburban Indonesia. International Research Journal of Business Studies, Jakarta, Indonesia, v. 6, n. 2, p. 121–132, 2013. DOI: 10.21632/irjbs.6.2.121-132. Disponível em: https://irjbs.prasetiyamulya.ac.id/index.php/jurnalirjbs/article/view/781. Acesso em: 4 dec. 2025.