SUBSURFACE MINE HAZARDS & SAFETY ( USEFULL FOR DEGREE /DIPLOMA IN MINING AMIE GATE MINING COMPETITIVE EXAMS FOR PSU , EXAMINATIONS COAL AND METAL AND GAS TESTING EXAMS 2021 EDITION)

SUBSURFACE ACE MINE HAZARD AND SAFETY THEORY SOLVED EXAMPLES & WORKBOOK PRACTICE QUESTIONS, COAL AND METAL AND GAS TESTING EXAMS, USEFULL FOR ALL COMPETITIVE MINING AND ALL MINING COURSES BY SRI DHRUTI SUNDAR PRADHANN IS PRESENTLY WORKING AS LECTURER IN DEPARTMENT OF TECHNICAL EDUCATION AND TRAINING, GOVT. OF ODISHA .HE HAS COMPLETED B.TECH.M.TECH IN MINING ENGINEERING AND AT INDIAN INSTITUTE OF TECHNOLOGY ( IIT) KHARAGPUR