NURUL AMALIN FATIHAH KAMARUL ZAMAN, KASTURI DEVI KANNIAH, UNIVERSITI TEKNOLOGI MALAYSIA, Malaysia; DIMITRIS G. KASKAOUTIS, NATIONAL OBSERVATORY OF ATHENS, Greece; NURUL ASYIQIN MOHAMAD FADZIL, UNIVERSITI TEKNOLOGI MALAYSIA, Greece; MOHD TALIB LATIF, UNIVERSITI KEBANGSAAN MALAYSIA, Malaysia