November 10, 1993 – DO No. 87, s. 1993 – Rules and Regulations for the Effective Implementation of R.A. No. 5966, Otherwise Known as the “Philippine Librarianship Act of 1990”
November 10, 1993 – DO No. 87, s. 1993 – Rules and Regulations for the Effective Implementation of R.A. No. 5966, Otherwise Known as the “Philippine Librarianship Act of 1990”