Gaya APA

Sum, C., Teo, C. (1999). Strategic posture of logistics service providers in Singapore (Vol. 29 No. 9, 1999). Singapore: Emerald.

Gaya MLA

Sum, Chee-Chuong., Teo, Chew-Been. "Strategic posture of logistics service providers in Singapore". Vol. 29 No. 9, 1999 Singapore: Emerald, 1999. Article.