“…De Koster et al, 2007;Gu et al, 2010;Arooj et al, 2011;Bhuptani and Moradpour 2005;Karagiannaki et al, 2011 Venkitasubramony andAdil 2017;Derhami et al, 2017Derhami et al, :2016Boysen et al, 2017 Warehouse operational factors Receiving _ put away _ forward reserve allocation _ picking _ order accumulation and sorting _ zoning _ batching _ routing _ shipping _ storage assignment policy. Rouwenhorst et al, 2000;Gu et al, 2007;Karagiannaki et al, 2011Coyle et al, 1996Tompkins et al, 2003;De Koster et al, 2007Pan et al, 2011Chan and Cheng 2012;Korobkov, 2014…”