Mujiyo M, Sutarno S, Suwarto S, Budiono R, sutopo novi rahmawati. Inhibiting Factors of Land Suitability for Piper nigrum L. in a Hilly Area of Tirtomoyo District, Central Java. j Trop. Soils [Internet]. 2020Jan.2 [cited 2025Aug.14];25(1):29-37. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/330