Aspar, Z. (2018). Petri net modelling of programmable logic controller. Johor Bahru, Johor : Universiti Teknologi Malaysia.
Cita Chicago (17th ed.)Aspar, Zulfakar. Petri Net Modelling of Programmable Logic Controller. Johor Bahru, Johor : Universiti Teknologi Malaysia, 2018.
Cita MLA (9th ed.)Aspar, Zulfakar. Petri Net Modelling of Programmable Logic Controller. Johor Bahru, Johor : Universiti Teknologi Malaysia, 2018.
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