Mufahir, A., dan Sugiharto. “ANALISIS STRATEGI PEMASARAN CV. SERASI JAYA MANDIRI DIVISI BUS PARIWISATA CABANG BUBULAK”. Economics Learning Experience & Social Thinking Education Journal, vol. 1, no. 1, Maret 2021, hlm. 67-75, https://journal.stiegici.ac.id/index.php/eleste/article/view/208.