Vignesh Kumar Subramaniam. (2006). Design the car park control using grafcet. Kolej Universiti Teknikal Kebangsaan Malaysia.
Cita Chicago (17th ed.)Vignesh Kumar Subramaniam. Design the Car Park Control Using Grafcet. Ayer Keroh: Kolej Universiti Teknikal Kebangsaan Malaysia, 2006.
Cita MLA (8th ed.)Vignesh Kumar Subramaniam. Design the Car Park Control Using Grafcet. Kolej Universiti Teknikal Kebangsaan Malaysia, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.