Pheng, L. S., & Pheng, L. S. (2018). Project Management for the Built Environment: Study Notes (1st ed. 2018.). Springer Singapore : Imprint: Springer. https://doi.org/10.1007/978-981-10-6992-5
Παραπομπή σε μορφή Chicago (17η εκδ.)Pheng, Low Sui, και Low Sui Pheng. Project Management for the Built Environment: Study Notes. 1st ed. 2018. Singapore: Springer Singapore : Imprint: Springer, 2018. https://doi.org/10.1007/978-981-10-6992-5.
Παραπομπή σε μορφή MLA (8th εκδ.)Pheng, Low Sui, και Low Sui Pheng. Project Management for the Built Environment: Study Notes. 1st ed. 2018. Springer Singapore : Imprint: Springer, 2018. https://doi.org/10.1007/978-981-10-6992-5.
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