Encyclopaedia of mass media and communication Vol I: the mass media.
Encyclopaedia of mass media and communication Volume IV :the print and other folk media.
Encyclopaedia of mass media and communication Vol III: the electronic media.
Encyclopaedia of mass media and communication Vol II: the mass communication.
Ecology of polluted waters. Vol. I
Ecology of polluted waters. Vol. II
Environmental Pollution and Health Hazards
Information Technology for All (Volume - Two)
Ecology of Polluted Waters. Volume 1
Ecology of Polluted Waters. Volume 2