Begum, R., R. R. Sahoo, S. K. Sahu, and M. Mishra. “An EOQ Model for Varying Items With Weibull Distribution Deterioration and Price-Dependent Demand”. Journal of Scientific Research, vol. 2, no. 1, Dec. 2009, pp. 24-36, doi:10.3329/jsr.v2i1.2764.