1. SUBCLASSES OF P-VALENT MEROMORPHIC FUNCTIONS INVOLVING CERTAIN OPERATOR. Authors: ADELA O. MOSTAFA, MOHAMED K. AOUF.2. CERTAIN CLASS OF ANALYTIC FUNCTIONS DEFINED BY q-ANALOGUE OF RUSCHEWEYH DIFFERENTIAL OPERATOR. Authors: FAWZIAH Y. AL-QUHALI, ADELA O. MOUSTAFA, MOHAMED K. AOUF.