Tiwari Dipak Raj, . (1999). भुविज्ञान मेनुअल. Jaipur: Printwell Publication.
Tiwari Dipak Raj, . 1999. भुविज्ञान मेनुअल. Jaipur: Printwell Publication.
Tiwari Dipak Raj, . भुविज्ञान मेनुअल. Jaipur: Printwell Publication. 1999.
