“Pola Sebaran Retensi Dan Ketersediaan Hara Pada Toposekuen Lahan Jagung Di Desa Pilolaheya, Kabupaten Bone Bolango: Distribution Patterns of Retention and Nutrition Availability at Maize Land Toposequens in Pilolaheya Village, Bone Bolango Regency”. 2022. Jurnal Ecosolum 11 (1): 1-13. https://doi.org/10.20956/ecosolum.v11i1.19556.