Links for getting basic and depth knowledge in pointer

Operator precedence:
http://www.difranco.net/compsci/C_Operator_Precedence_Table.htm

Basics on pointers:
http://boredzo.org/pointers/

http://netospgm.blogspot.in/2014/08/constant-pointer-and-pointer-to.html

Detailed pointer example:
http://c-pointer.blogspot.in/2012/03/pointers-tutorial-in-c.html

function pointer calling procedure:
http://netospgm.blogspot.in/2014/08/function-pointer-and-state-event-machine.html

Allocating memory for 2d array using 3 methods:
http://www.geeksforgeeks.org/dynamically-allocate-2d-array-c/

typedef with pointer:
https://fresh2refresh.com/c-programming/c-typedef/
https://stackoverflow.com/questions/1543713/c-typedef-of-pointer-to-structure