Circular No. 01/1998/TT-TCBD guiding the implementation of Decree No.109/1997/ND-CP

Circular No. 01/1998/TT-TCBD dated May 15, 1998 of the General Department of Post and Telecommunications guiding the implementation of Decree No.109/1997/ND-CP of the Government on post and telecommunications regarding the management of the quality of post and telecommunication supplies, equipment, networks and services