Putinella, J. A., Y. Nuraini, and B. Prasetya. “Nitrogen Released from Sago Pulp Waste and Gliricidia Sepium Pruning Mixtures on a Dystrudept of Central Moluccas and Its Effect on the Growth of Maize”. Journal of Degraded and Mining Lands Management, vol. 9, no. 2, Jan. 2022, pp. 3341-7, doi:10.15243/jdmlm.2022.092.3341.