Gaya APA

Saleh, W., Sammer, G. (2009). Travel Demand Management and Road User Pricing Success, Failure, and Feasibility (1 ( Pertama )). USA: Ashgate Pub. Company.

Gaya MLA

Saleh, Wafaa., Sammer, Gerd. "Travel Demand Management and Road User Pricing Success, Failure, and Feasibility". 1 ( Pertama ) USA: Ashgate Pub. Company, 2009. eBook.