GUTAMA, Handito Kusumaning; NARTO, Narto; SUDARSO, Indung. UPAYA PENINGKATAN PENJUALAN DENGAN PENDEKATAN METODE SEVICE QUALITY DAN FOCUS GROUP DISCUSSION PADA KAFE HOUSE OF PADMANING SURABAYA. Prosiding Sains Nasional dan Teknologi, [S. l.], v. 1, n. 1, 2017. DOI: 10.36499/psnst.v1i1.1855. Disponível em: https://publikasiilmiah.unwahas.ac.id/PROSIDING_SNST_FT/article/view/1855. Acesso em: 30 nov. 2025.