e) Cooperate and exchange info sources with domestic and overseas libraries; participate in library-similar forums and socio-professional corporations In accordance with rules of regulations;B?n ph?i ??ng nh?p ho?c ??ng ký Thành Viên TVPL Professional ?? s? d?ng ???c ??y ?? các ti?n ích gia t?ng liên quan ??n n?i dung TCVN.B?n ph?i ??ng nh?p