00536nam a22001697a 4500003000200000005001700002008004100019020002200060050002400082100002500106245004500131260003700176300005700213504005600270650001500326650002500341020250115114530.0250115b        xxu||||| |||| 00| 0 eng d  a978-621-435-051-3  aLB 2369b.En33 2021  aEncabo, Floricon V.   aPractical research 2cFloricon V. Encabo  aBulacanbKLEAFS Publishingc2021  aiv, 222 pages billustrations and pictures ;c26cm.   aIncludes bibliographical references and glossary. 
  aResearch.   aPractical research.