Lec Civil Servant Exam K Master [Contents] ・Numerical Reasoning ・Social Sciences ・Reading Comprehension ・Information ・Natural Sciences I, II ・Humanities I, II [⚠️We are offering significant discounts at irregular intervals.] Instant purchase is OK ⭕️ I was able to pass the exam with just these textbooks. There are a few pencil markings in some of the problem sets, but they can be easily erased.