Handayani, S., Faisal, H., Izar, S., & Sitorus, T. F. (2026). The Formulation, Characterization, and Antibacterial Activity of Solid Soap Containing Guava Leaf Extract (Psidium guajava L.) and Precipitated Calcium Carbonate . Jurnal Kesmas Prima Indonesia, 10(2), 22–31. https://doi.org/10.34012/jkpi.v10i2.8467