Affiliation: | 1. Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi-23640, District Swabi, NWFP, Pakistan 2. Ghulam Ishaq Khan Institute of Engineering Sciences and Technology, Topi-23640, District Swabi, NWFP, Pakistan;Physical Technical Institute of Academy of Sciences, Rudald Ave.33, Dushanbe, 734025, Tajikistan |