S. Septiarini, P. Priyanto, N. Nurmalasari, and G. K. Wardani, “Marketing Communication Strategy Analysis in the Non-Transport Commercialization Unit (KNA) PT. Kereta Api Indonesia (Persero) Operational Area 7 Madiun”, Epicheirisi, vol. 8, no. 2, pp. 1–9, Sep. 2024.