%0 Journal Article %A Fakhimi Azar, Sirous, Akbari Vaneabad, Morteza, Rasouli, Reza %T Investigating the Effect of Marketing Mix (4P) on the Sales Increase of Waterheaters Produced by Ghaynar Khazar Compay in Tabriz %J The Journal of Productivity Management %V 5 %N 1 %P 79-106 %D 2011 %R %U https://sanad.iau.ir/fa/Article/976071