Putrawan, I.D.G.A. et al. 2020. Agricultural wastes as renewable fillers in physical granulation of NPK fertilizers: Evaluation of on-size granules and comparison to conventional filler. International Journal of Recycling of Organic Waste in Agriculture. 9, 2 (Jun. 2020). DOI:https://doi.org/10.30486/ijrowa.2020.1889862.1018.