TY - BOOK T1 - Methods and techniques of research A1 - Sanchez, Custodiosa Ancheta LA - English PP - Manila PB - Rex Book Store YR - 1986 ED - Rev. ed. UL - https://tuklas.up.edu.ph/Record/UP-99796217604536567 OP - 229 CN - H 62 S33 1986 SN - 9712303551 KW - Social sciences : Research. ER -