Collections of online reference books allow you to search the full-text of multiple titles that might cover your research topic.
Research sources include three databases, thousands of curated articles and magazines, images, videos, audio clips, primary sources, maps, research tools, and recommended websites, along with a pop-up Merriam-Webster’s Dictionary and Thesaurus; UPH USERS MUST FIRST CREATE A FREE PNRI ACCOUNT at https://keanggotaan.perpusnas.go.id/daftar.aspx
The list below includes some of the reference books that cover the field of education, both in print and online.
These strategies will help you utilize reference materials in your research: