TY - BOOK AU - Agbuggo, Mirasol V. TI - Cytological effect of prickly pear cactus (Opuntia ficus-indica) crude extract on paramecium sp. isolated from pond water PY - 2008/// N1 - Thesis (BS Biology) -- Mariano Marcos State University-College of Arts & Sciences, Batac City; Bibliography: leaves 30-31 ER -