Hashim, A. R. (2006). Maintenance management and servises (case study: PERKESO building's in penisular of Malaysia).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रHashim, Ahmad Riza. Maintenance Management and Servises (case Study: PERKESO Building's in Penisular of Malaysia). 2006.
एमएलए (9वां संस्करण) प्रशस्ति पत्रHashim, Ahmad Riza. Maintenance Management and Servises (case Study: PERKESO Building's in Penisular of Malaysia). 2006.
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