00357nam a2200121Ia 4500003000600000005001700006008004100023020001800064040002500082082002700107245005600134260004500190NORSU20240813025625.0240215s9999    xx            000 0 und d  a971-570-101-9  aNORSU-DumcNORSU-Dum  aFil 372.35 P88 II 2002 0aPractical Work in Elementary School Science Grade 2  bUniversity of the Philippine Pressc2002