Drillability of Some Indian Rocks With Regard to Percussive Drilling http://127.0.0.1/xmlui/handle/123456789/3035 2026-04-17T16:19:34Z 2026-04-17T16:19:34Z Drillability of Some Indian Rocks With Regard to Percussive Drilling Pajthankar, Anand Govind http://127.0.0.1/xmlui/handle/123456789/3036 2015-06-01T07:44:00Z 1978-01-01T00:00:00Z Drillability of Some Indian Rocks With Regard to Percussive Drilling Pajthankar, Anand Govind 1978-01-01T00:00:00Z