“Production Inventory Models for Deteriorating Items With Stochastic Machine Unavailability Time, Lost Sales and Price-Dependent Demand”. Jurnal Teknik Industri: Jurnal Keilmuan Dan Aplikasi Teknik Industri, vol. 12, no. 2, Dec. 2010, pp. 61-68, https://doi.org/10.9744/jti.12.2.61-68.