SUYAMA Keisuke, K.Goto, J.Dawson. Customer Loyalty to Private Brands in Japan,. EAERCD Conference. 2005
SUYAMA Keisuke, H.Umemoto, Y.Suzuki. NB and PB Brand Communication in Japan:An Explanation of the Low PB Market Share,. The Japanese Economy. 2004. Vol.32,No.3(Fall), 2004,pp.105-124