STRATEGI DIVERSIFIKASI PENDAPATAN UPAYA PENINGKATAN BISNIS NON AERONAUTIKA DI BANDARA BLU UPBU KELAS I UTAMA JUWATA TARAKAN. (2025). JOURNAL OF SCIENCE AND SOCIAL RESEARCH, 8(4), 4232-4239. https://doi.org/10.54314/jssr.v8i4.4690