Siregar, S. R., Indriani, F., Masyithah, R., Batubara, R. W., Putri, A., & Harahap, D. A. P. (2026). MANAGEMENT OF HAZARDOUS AND TOXIC WASTE (B3) AT MENTAL HOSPITAL X IN MEDAN CITY. HEARTY, 14(2), 479–485. https://doi.org/10.32832/hearty.v14i2.21839