D. Fahruroji, “GROSS OPERATING PROFIT (GOP) ACHIEVEMENT POSITIVE STRATEGY IN THE NEW NORMAL ERA (Case Study at Swiss Belresidences Hotel Kalibata Jakarta): Case Study at Swiss Belresidences Hotel Kalibata Jakarta”, JPIM (Jurnal Penelitian Ilmu Manajemen), vol. 8, no. 2, pp. 226–237, Jun. 2023.