Science and technology : For Civil Services Preliminary and main Examinations /
Agrahari Ravi P
Science and technology : For Civil Services Preliminary and main Examinations / Ravi P Agrahari. - 4th ed. 2020. - Chennai. McGraw Hill Education; 2020. - x-E.10 p. softbound 18x24cm
Part A Science and Technology in India
Part B UPSC Mains Answers- New Pattern science and technology
978-93-90113-06-4
600.076 / AGR
Science and technology : For Civil Services Preliminary and main Examinations / Ravi P Agrahari. - 4th ed. 2020. - Chennai. McGraw Hill Education; 2020. - x-E.10 p. softbound 18x24cm
Part A Science and Technology in India
Part B UPSC Mains Answers- New Pattern science and technology
978-93-90113-06-4
600.076 / AGR