NOFRIYANTO PAKOLO; SEMBIRING, M. .; RAUF, A. Isolation And Test Potential Of Phosphate Solubilization Microorganisms On Andisols Sinabung Eruption Impact On Some Thickness Of Ash In Karo District. Jurnal Online Pertanian Tropik, [S. l.], v. 5, n. 3, p. 328–339, 2019. DOI: 10.32734/jopt.v5i3.3058. Disponível em: https://idjpcr.usu.ac.id/jpt/article/view/3058. Acesso em: 4 aug. 2025.