Lec Civil Servant Exam Practice Problems Price: 15,840 yen (1,980 yen per book) [We plan to significantly reduce the price irregularly, so we recommend following/liking.] ⚠️Since we are also selling on other flea market sites, there is a possibility that items may sell out. Immediate purchase, individual sales, and bulk sales are OK. I passed all the exams I took by only using these reference books, starting around this time of year. Some of the problem sets have pencil markings, but they can be easily erased with an eraser.