Reddit reviews Is It Wrong to Try to Pick Up Girls in a Dungeon?, Vol. 6 (light novel)
We found 4 Reddit comments about Is It Wrong to Try to Pick Up Girls in a Dungeon?, Vol. 6 (light novel). Here are the top ones, ranked by their Reddit score.
Volume 11 is coming out in June. You can also find all the above on other stores like Kobo, iBooks, etc.
Here is a few links for volume 6:
https://www.amazon.com/Wrong-Girls-Dungeon-light-novel-ebook/dp/B01922I13Y/ref=sr_1_1?keywords=danmachi+6&qid=1571699891&sr=8-1
https://global.bookwalker.jp/de3d3ac3af-877f-46dd-a9ba-48d6380b7976/is-it-wrong-to-try-to-pick-up-girls-in-a-dungeon-vol-6/
https://www.kobo.com/dk/en/ebook/is-it-wrong-to-try-to-pick-up-girls-in-a-dungeon-vol-6-light-novel-2
You can of course find the further volumes on the same sites.
The light novels are the source. If you haven't read them, I recommend you do! They're available on Amazon and other book stores.
EDIT: Recommend starting at Volume 6 if you've finished the anime: https://www.amazon.com/Wrong-Girls-Dungeon-light-novel-ebook/dp/B01922I13Y/ref=sr_1_19?ie=UTF8&qid=1527182176&sr=8-19&keywords=is+it+wrong+to+try+to+pick+up+girls+in+a+dungeon
https://global.bookwalker.jp/search/?word=Is+It+Wrong+to+Try+to+Pick+Up+Girls+in+a+Dungeon
https://www.amazon.co.uk/Wrong-Girls-Dungeon-light-novel-ebook/dp/B01922I13Y/ref=sr_1_16?s=books&ie=UTF8&qid=1510148605&sr=1-16&keywords=is+it+wrong+to+try+to+pick+up+girls+in+a+dungeon
volume 10 is out next month. With bookwalker you can use promo codes to get nice discounts. Sometimes i go for amazon sometimes bookwalker