This author has not been identified. Look up 'Ismail Koyuncu' in GoogleThis author has not been identified. Look up 'Murat Alçin' in GoogleThis author has not been identified. Look up 'Murat Tuna' in GoogleThis author has not been identified. Look up 'Ihsan Pehlivan' in GoogleThis author has not been identified. Look up 'Metin Varan' in GoogleThis author has not been identified. Look up 'Sundarapandian Vaidyanathan' in Google