Inovasi Relationship Marketing dalam Pemasaran Sarana Produksi Pertanian: Studi Kasus pada Inisiasi Program Petrosida Responsible Farmers (PRF). agrotechbiz [Internet]. 2026 Jul. 1 [cited 2026 Jun. 24];2(1):1-8. Available from: https://e-journal.upm.ac.id/index.php/agrotechbiz/article/view/611