Marlina, T., Husnawati Yahya, and Abd Mujahid Hamdan. “JI FEKTIVITAS OTORAN API ALAM EMEDIASI ANAH OP OIL ANG ERCEMAR LI”. ingkar: ournal of nvironmental ngineering, ol. 2, no. 2, Dec. 2021, pp. 42-51, doi:10.22373/ljee.v2i2.1383.