PRATA STEFEN, . (2001). ADVANCE UNIX A PROGRAMMING GUIDE. NEW DELHI: BPB PUB NEW DELHI.
PRATA STEFEN, . 2001. ADVANCE UNIX A PROGRAMMING GUIDE. NEW DELHI: BPB PUB NEW DELHI.
PRATA STEFEN, . ADVANCE UNIX A PROGRAMMING GUIDE. NEW DELHI: BPB PUB NEW DELHI. 2001.
