If you are unable to find a copy of "Basic Electronics: Solid State" by B.L. Theraja, there are several alternative textbooks that you can use. Some popular alternatives include:
Briefly covers advanced topics like integrated circuits, fiber optics, and electronic instruments. Google Books Accessing the Book Legally If you are unable to find a copy
: BJT (Bipolar Junction Transistor) characteristics, DC biasing, and equivalent circuit models. Amplifiers & Oscillators : Single-stage and multi-stage feedback amplifiers. Integrated Circuits (ICs) : Fundamentals of IC fabrication and basic logic gates. Modern Applications If you are unable to find a copy
Introduction to logic gates, Boolean algebra, and flip-flops. If you are unable to find a copy
The behavior of charge carriers (electrons and holes) under thermal and electrical stimulation. 2. Semiconductor Diodes and Applications