Puspita, Irene Melia. 2020. “Marketing Public Relations Strategy PT. Berjaya Sally Ceria (Sour Sally) through Rejuvenation to Build "All New Sour Sally” Brand Images”. Ultimacomm: Jurnal Ilmu Komunikasi 12 (1):110-25. https://doi.org/10.31937/ultimacomm.v12i1.1082.