1.
Yayu Agustini R, Liska Mutiara Septiana, Aliya Azkia Zahra. Chemical Characteristics of Ultisols and Purple Eggplant Yields due to the Application of Composted Paper Sludge and NPK Fertilizer. J. Ilmu. Pertan. Indones. 2026;31(3):579-586. doi:10.18343/jipi.31.3.579