Dedy Ruzwardy, Juliansyah Harahap, and Habiyuda Pradana Syahran. 2023. “NALYSIS F IRE ROTECTION YSTEM N HE ULTIFUNCTIONAL ABORATORY UILDING F R-ANIRY TATE SLAMIC NIVERSITY ANDA CEH NDONESIA”. ingkar: ournal of nvironmental ngineering 4 (1):45-56. https://doi.org/10.22373/ljee.v4i1.2722.