The Book Biology is for Intermediate class 11th. This is a book by Punjab Curriculum and textbook board Lahore and published by Maktaba Rehmania Lahore.
The book Data Structures in C++ is for computer science students. This book presents the fundamentals of the subject and intends to provide basic concepts involved in manipulating various data structures to students in simple language with the help of small and simple algorithms. The book is suitable for use in self-study, directed study and as a class text.