00573nam a22001457a 4500003000400000005001700004008004100021040001400062100002200076245017000098260001500268300002800283500008300311504003300394OSt20230510141513.0230510b        |||||||| |||| 00| 0 eng d  aMMSUcULS  aVijuan, Cherie R.  aTeachers and administrators' perceptions, benefits and challenges in the utilization of open educational resources (OER) in teaching life sciences/cCherie R. Vijuan  aMMSUc2022  axii, 183 leavesc28 cm.  aThesis (Master of Arts in Education-Biology) - Mariano Marcos State University  aBibliography: leaves 138-155