NIM: D01300146.
NIM: C01399274.
NIM:089100109.
NIM:BO4304035. Bibliografi hlm 85-86.
NIM:D31205045. Bibliografi hlm. 87-89.
The existence of reference service in an academic library has long been in operation, as long as the library itself. However, compared to its equel public service of circulation, this service is le…