Note: Please refer to the 2nd question on the FAQ page if you don’t know what the format of the password is. If you really are clueless, email me at the email on the Contact page.
Where to get the official releases of Hataraku Maou-sama!
Chinese official translation
Google Books: Google 打工吧！魔王大人 on Google Books
English official translation
Book Depository (Hard copy, free shipping worldwide): https://www.bookdepository.com/search?searchTerm=the%20devil%20is%20a%20part%20timer&search=Find+book
Yen Press Website
You can go to the link below, click on the volume you want to buy (digital or hardcopy) and will be presented with options on where to buy them.