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ADDITIONAL MENU :
Erwin Harahap
Department of Mathematics, Universitas Islam Bandung, Bandung 40116 INDONESIA
Indonesia
Icih Sukarsih
Gani Gunawan
M Yusuf Fajar
Deni Darmawan
Hiroaki Nishi
Department of System Design, Faculty of Science and Technology, Keio University. Kohoku-ku, Yokohama. JAPAN.
Japan