BHATT. (2011). ELEMENTARY ENGINEERING DRAWING ( PLANE AND SOLID GEOMETRY ) ( TEACHER'S COPY ).
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBHATT. ELEMENTARY ENGINEERING DRAWING ( PLANE AND SOLID GEOMETRY ) ( TEACHER'S COPY ). 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBHATT. ELEMENTARY ENGINEERING DRAWING ( PLANE AND SOLID GEOMETRY ) ( TEACHER'S COPY ). 2011.
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