Enina Putri, Wahyu Sardjono. “a ANALYSIS AND DEVELOPMENT OF PROTOTYPE KNOWLEDGE MANAGEMENT SYSTEM IMPLEMENTATION TO ACHIEVE INDEX SERVICE RECOVERY IN PT BALAI LELANG XYZ : Knowledge Management System Implementation to Achieve Service Recovery Index”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 3, no. 3, Dec. 2012, pp. 122-30, https://textitlejournal.com/turcomat.org/index.php/turkbilmat/article/view/369.