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Saurnida Siahaan Asianna A, Siregar R, Satriawan H. Analysis Of Magnesium Effect On Vegetative Growth Of Arabica Coffee Variety Sigarar Utang . JPPT [Internet]. 2025 Jan. 9 [cited 2026 Sep. 17];25(3):21-32. Available from: https://jurnal.polinela.ac.id/index.php/jppt/article/view/4082