Kurniawan, Safrudin. “Analisis Ability to Pay Dan Willingness To Pay Tarif Krl Terhadap Rencana Pengoperasian Krl Relasi Madiun-Solo ”. Jurnal Syntax Admiration 4, no. 6 (June 24, 2023): 740-753. Accessed December 22, 2024. https://jurnalsyntaxadmiration.com/index.php/jurnal/article/view/628.