Janothama, F. ., and E. P. . Saputro. “The Effect of Promotion and Service Quality on Purchase Decisions With Price As a Mediation Variable at Wizzmie in Surakarta City”. Jurnal Mantik, vol. 9, no. 4, Feb. 2026, pp. 1131-40, doi:10.35335/mantik.v9i4.6844.