Utilization of tourmaline stone as a fertilizer in medicinal plant verticulture. Community Empowerment, [S. l.], v. 6, n. 8, p. 1318–1324, 2021. DOI: 10.31603/ce.4237. Disponível em: https://coba.unimma.ac.id/ce/article/view/4237. Acesso em: 30 sep. 2026.