Monograph

Kanbur, Mandu G. and Yen, Siew Hwa and Katib, Mohamed Nasser (1991) Price trend of palm oil in Malaysia. Discussion Paper. Universiti Utara Malaysia, Sintok. (Unpublished)

Ahmad Radhi, Nungsari (1991) Consumer decision making on car purchases in Kedah. Other. Universiti Utara Malaysia, Sintok. (Unpublished)