131068
10.168.15.32 202.0.107.130 gtwperpus.usu.ac.id proxy.library.usu.ac.id
org
academicdirect
lejpt
2
2
2
131068 10.168.15.32 202.0.107.130 gtwperpus.usu.ac.id proxy.library.usu.ac.id