Use APKPure App
Get 10th Class Chemistry Notes(Key book) PTB old version APK for Android
This App is for 10th class student who are studying in punjab board pakistan
Now you have no need to carry key book along with you.Install 10th class chemistry keybook
PTB(Punjab Text Book) app And Study Everywhere,
Where you have internet access.
Features:
=>Long Questions
=>Short Questions
=>MCQ'S
=>Numericals