The module is a companion book designed for semesters 1 through 4. It is designed to assist undergraduate students in preparing for midterm and final exams, as well as to improve their academic performance. The module is structured as a summary system based on the syllabus of courses from semesters 1 through 4. This depends on the semester being studied. Why only semesters 1-4? Because the remainder of the module has a specific focus, which will only be discussed in detail and focused on those semesters, not for lower semesters. However, it is emphasized once again that this module is only a companion book, and undergraduate students are recommended to continue studying the main book for more detailed explanations. "Whoever follows a path in search of knowledge, Allah will make easy for him the path to Paradise." (Narrated by Tirmidhi)