TY  - JOUR
AU  - Kumar De, Sujit
AU  - Chandra Mahata, Gour
TI  - A cloudy fuzzy economic order quantity model for imperfect-quality items with allowable proportionate discounts
JO  - Journal of Industrial Engineering International
VL  - 15
IS  - 4
SP  - 0
EP  - 0
PY  - 2019
DO  - 
ER  -