We bieden dagelijks GRATIS gelicenseerde Android apps en games aan, die je normaal zou moeten kopen.
Deze giveaway is verlopen. Problem Solving PRO is nu beschikbaar op de normale manier.
★★★★★ Book: Problem Solving
Note: This version has NO ADS, If you want to donate me. Otherwise, you can also read the book as FREE app. Even you want a PDF version to read without paying, just contact me directly, I'll send it to you.
This book the guideline help you to solve your problem.
There are some techniques to solve the problems.
Books & Reference
4.4 and up