کتاب های Ratan Raj Tatiya
Surface and Underground Excavations: Methods, Techniques and Equipment
Ratan Raj Tatiya, 2005
Elements of industrial hazards : health, safety, environment and loss prevention
Ratan Raj Tatiya, 2011
Elements of Industrial Hazards: Health, Safety, Environment and Loss Prevention
Ratan Raj Tatiya, 2010
Surface and underground excavations : methods, techniques and equipment
Ratan Tatiya, 2013
