I’m not sure what EPS-TOPIK (Employment Permit System – Test of Proficiency in Korean) is, and I don’t know how and where you can apply for it, so please don’t ask me. I understand it as a Korean proficiency test for foreigners who want to work in South Korea. At the official website (https://www.eps.go.kr/) and https://www.eps.go.kr/eo/inMain.eo?natNm=in#tmp (in Indonesian), EPS-TOPIK textbooks in pdf and mp3 audio files to learn basic Korean are available for free download. I downloaded the files and in a glance, I think they can also be useful for anyone who wants to learn Korean on their own. There are 2 editions: the existing edition and the revised one. I don’t know how they are different. The books are written both in Korean and English, with exercises problems, audio files, and colorful illustrations.
Download them here: https://www.eps.go.kr/eo/NatCntnSuppR.eo?natNm=in&hiMenuId=204&menuId=221#tmp.
Sometimes the file names are unreadable so you need to rename the files to .pdf or .mp3 so your computer can open the files properly. ###