To access the above listed eBooks (and more!)
1) Create a free online account with PNRI following these instructions https://library.sph.edu/pnri
2) After you make an account, go to the PNRI site at https://e-resources.perpusnas.go.id/ and log in
3) Scroll down until you see the option for CENGAGE LEARNING (they own GALE) and click on TAUTAN
4) Choose the option for GALE E-BOOKS
You should then be able to find these psych books (plus a lot more!)
Note: while logged in to PNRI, you can click on the links for the above books to go directly to them.