ANALISA KELAYAKAN TARIF KERETA API EKONOMI LOKAL RUTE SIDOARJO - BOJONEGORO DENGAN METODE WILLINGNESS TO PAYdoi:10.46799/jsa.v4i10.748Feasibility Analysis of Local Economy Train Fares for Sidoarjo - Bojonegoro Route with Willingness To Pay Method. This study aims to determine the fare t...