TY - BOOK T1 - Synthesis of research in selected areas of health instruction T2 - School health education research monographs A2 - Veenkar, C. Harold ed LA - English PP - Washington PB - s.n. YR - 1963 UL - https://tuklas.up.edu.ph/Record/UP-99796217603678578 OP - 192 CN - RA 440 S35 KW - Health education. ER -