FIRDAUS, R.; MARDELA, R.; ARGANTOS, A.; SETIAWAN, Y. Feasibility Test of Hanging Sacks with Coconut Coir Waste Filling Materials for Martial Arts. International Martial Arts and Culture Journal, [S. l.], v. 2, n. 2, p. 110–112, 2024. DOI: 10.24036/imacj28019. Disponível em: https://imacj.ppj.unp.ac.id/index.php/imacj/article/view/28. Acesso em: 29 jun. 2025.