Organic Fertilizer Application Based Liquid Waste Fruit Leather Palm (Arenga pinnata Merr.) to Increase the Potential for Growth and Results of Soybean in the Soil Ultisol. Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan, [S. l.], v. 15, n. 1, p. 20–28, 2017. Disponível em: https://www.journals.unihaz.ac.id/index.php/agroqua/article/view/77. Acesso em: 13 feb. 2026.