-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16by Lubis, H. Idrus, Malik, Abdul, Gani, A., Gani, A., Tobing, Basa Uli, Nurbaiti, NurbaitiGet Fulltext
Published 1990
Academic Paper