TY - BOOK TI - Enhancing the process of safekeeping and preservation of the personnel (201) files at the Bureau of Internal Revenue - Revenue District Office Number 01, Laoag City, Ilocos Norte, Philippines U1 - TH 658.3 Sa1e 2021 PY - 2021/// CY - Ilocos Norte PB - [s.n.] KW - Personnel management ER -