dear sumaira.. I can guide you in psychology
1. psychology by Rakhshanda Shahnaz
2. psychology by Sheherbano and
3. Understanding Psychology by Feldman.
these three books are more than enough to cover the entire syllabus.
However, im just reading from Rakhsnda shahnaz and feldman, meray liyay to wohi kaafi hain. The rest is for you to decide.
Forestry ka mujhay 0.00001% bhy idea nahi hay.. :P so... !!