Padayhag, G. U. (2002). Evaluation of electronic toll collection along South Luzon Expressway and Manila Skyway.
Chicagoスタイル(17版)引用形式Padayhag, Grace U. Evaluation of Electronic Toll Collection Along South Luzon Expressway and Manila Skyway. 2002.
MLA(9版)引用形式Padayhag, Grace U. Evaluation of Electronic Toll Collection Along South Luzon Expressway and Manila Skyway. 2002.
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