Isolation And Test Potential Of Phosphate Solubilization Microorganisms On Andisols Sinabung Eruption Impact On Some Thickness Of Ash In Karo District. Petrop [Internet]. 2019 Dec. 3 [cited 2026 Feb. 5];5(3):328-39. Available from: https://idjpcr.usu.ac.id/jpt/article/view/3058