KULKARNI D M, RASTOGI A P, & SARKAR A K. (2019). ENGINEERING GRAPHICS WITH AUTOCAD (11 REVISED ED.). PHI LEARNING PRIVATE LIMITED.

KULKARNI D M, RASTOGI A P, and SARKAR A K. ENGINEERING GRAPHICS WITH AUTOCAD. 11 REVISED ED. DELHI: PHI LEARNING PRIVATE LIMITED, 2019.

KULKARNI D M, et al. ENGINEERING GRAPHICS WITH AUTOCAD. 11 REVISED ED. PHI LEARNING PRIVATE LIMITED, 2019.