2346-3775 2346-3775 S2346-37752019000200136 10.17138/tgft(7)136-140 Indonesia 00 08 2019 00 08 2019 7 2 136 140

2019 7 7 2010 154 154 544‒553 1994 2013 1 1 111‒113 2005 39 39 218