COA Circular No. 79-26 (E) dated September 6, 1979 re: Amendment of COA Circular No. 76-26 dated April 6, 1976 and COA Circular No. 79-26 (C) dated November 29, 1978, as Amended, Concerning the Amounts Subject to Pre-Audit
COA Circular No. 81-26 (k) dated July 2, 1981 re: Amendment of COA Circular No. 76-26 dated April 6, 1976, and No. 79-26 (C) dated November 29, 1978, as Amended. re: Partial Withdrawal of Pre-Audit