S. R. Siregar, F. Indriani, R. Masyithah, R. W. Batubara, A. Putri, and D. A. P. Harahap, “MANAGEMENT OF HAZARDOUS AND TOXIC WASTE (B3) AT MENTAL HOSPITAL X IN MEDAN CITY”, Hearty, vol. 14, no. 2, pp. 479–485, Apr. 2026.