Puspita, Irene Melia. “Marketing Public Relations Strategy PT. Berjaya Sally Ceria (Sour Sally) through Rejuvenation to Build "All New Sour Sally” Brand Images”. Ultimacomm: Jurnal Ilmu Komunikasi, vol. 12, no. 1, June 2020, pp. 110-25, doi:10.31937/ultimacomm.v12i1.1082.