1 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e
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1 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e-mail:regina_tutikp@uny.ac.id 2 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e-mail:regina_tutikp@uny.ac.id 3 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e-mail:regina_tutikp@uny.ac.id 4 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e-mail:regina_tutikp@uny.ac.id 5 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e-mail:regina_tutikp@uny.ac.id 6 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e-mail:regina_tutikp@uny.ac.id 7 Regina Tutik Padmaningrum, Jurdik Kimia, FMIPA, UNY, e-mail:regina_tutikp@uny.ac.id