Kakakhel, S. Ahqabullah (2006) TRI-TROPHIC LEVEL INTERACTION AMONG HOST PLANT (RAPESEED-MUSTARD), TURNIP APHIC (LIPAPHIS ERYSIMI KALT.), PARASITOID (DIAERETIELLA RAPARE MÃÂâÃÂÃÂÃÂÃÂINTOSH.) AND ITS AUGMENTATION ON BRASSICA NAPUS. PhD thesis, University of Arid Agriculture, Rawalpindi.