THE PREFERENTIAL STRUCTURE OF Co2+ SOLVATION IN AQUEOUS AMMONIA SOLUTION DETERMINING BY MONTE CARLO SIMULATION - Kusumawardani, Cahyorini; Chemistry Education Department, Faculty of Mathematics and Natural Sciences, State University of Yogyakarta, Karangmalang, Depok, Yogyakarta 55283, Indonesia (Universitas Gadjah Mada, 2010)