Sriagtula, R. et al. 2023. Produksi Sorgum Manis (Sorghum bicolor L. Moench) Tanaman Primer dan Ratun I Varietas Numbu dan CTY-33 di Tanah Ultisol. Jurnal Peternakan Indonesia (Indonesian Journal of Animal Science). 25, 1 (Feb. 2023), 1–12. DOI:https://doi.org/10.25077/jpi.25.1.1-12.2023.