Tawakal, Muhammad Bimasakti, et al. “Effect of Organic Fertilizers and Plant Growth-Promoting Rhizobacteria (PGPR) on Nutrient Residue and Growth of Rice (Oryza Sativa L.).” International Journal of Environment, Agriculture and Biotechnology, vol. 10, no. 1, 2025, pp. 074–79. Crossref, https://doi.org/10.22161/ijeab.101.10.