1. Oil shales of the world, their origin, occurrence and exploitation;Russell,1990
2. Pakistan Energy Year Book 1993. Islamabad, Pakistan: Ministry of Water and Power, Government of Pakistan, 1994.
3. Kinetic studies of rapid oil-shale pyrolysis;Shen;Fuel,1991
4. Thermogravimetric analysis kinetics of Jordan oil-shale;Haddadin;Industrial Engineering Chemistry, Process, Design and Development,1974