Growth and Yield of Rice Plant by the Applications of River Sand, Coconut and Banana Coir in Ustic Endoaquert. j Trop. Soils [Internet]. 2013 Mar. 19 [cited 2025 Nov. 1];18(1):25-32. Available from: https://journal.unila.ac.id/index.php/tropicalsoil/article/view/166