Perio coverage

Check Sodium's blogspot for coverage of

- Math4

- Bio2

- Soc Sci3

- English3

*hopefully this is the last update for additional stuff to study for perio so study hard! \m/

Pero wait for the powerpoint of sir erin. Nag-kinky swear siya! :O :>

Pati ung class standing, dito daw niya ippost as draft so watch out for that! :>