Humaira Seema; S. K. Durrani; K. Saeed; I. Mohammadzai; N. Hussain(Peshawar: Materials Research Laboratory Department of Physics University of Peshawar, Pakistan, 2010-12-02)
S. Z. Hussain; S. K. Durrani; S. K. Durrani; M A. Hussain; N. Hussain; M. Ahmad(Peshawar: Materials Research Laboratory Department of Physics University of Peshawar, Pakistan, 2010-06-06)