W. Kustiawan, A. Taufiqurrohman, I. Anggianto, I. Tursina, N. L. T. B. Purba, and S. Ritonga, “Radio Broadcasting Basics (Broadcaster Qualifications, Broadcasting Techniques, Opening, Bridging, Closing, Vocal Techniques)”, jptam, vol. 8, no. 1, pp. 4851–4858, Jan. 2024.