INNA, F.; KRISDHIANTO, A.; YAQIN, M. A. Pengaruh Pupuk Organik Limbah Sayuran dan Buah Terhadap Produktivitas Tanaman Jahe Merah (Zingiber Oficinale var. rubrum) Sebagai Sumber Belajar Mata Kuliah Ekologi : The Effect of Organic Fertilizer from Vegetable and Fruit Waste on the Productivity of Red Ginger Plants (Zingiber Oficinale var. Rubrum) as a Learning Resource for Ecology Courses. JERNIH : Journal of Environmental Engineering and Hygiene, [S. l.], v. 1, n. 01, p. 01–11, 2023. DOI: 10.31537/jernih.v1i01.1087. Disponível em: https://jurnal.unipar.ac.id/index.php/jernih/article/view/1087. Acesso em: 27 jul. 2025.