(EMCS), E. C. S. (2023). Sanitary & drainage system riser diagram. Brac University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र(EMCS), Electro-Mechanical Control Services. Sanitary & Drainage System Riser Diagram. Brac University, 2023.
एमएलए (8वां संस्करण) प्रशस्ति पत्र(EMCS), Electro-Mechanical Control Services. Sanitary & Drainage System Riser Diagram. Brac University, 2023.
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