If they are not entirely comfortable playing using computers, these e-books will likely discuss that topic in more detail.
http://881.cz/forum.php?mod=viewthread&tid=28631&extra=
http://nihongo.edu.lk/showthread.php?tid=347403
http://horsecity.ru/phpBB3/viewtopic.php?f=10&t=257019
http://www.horsecity.ru/phpBB3/viewtopic.php?f=13&t=187918
http://forum.arduionly.com.au/showthread.php?tid=156685
http://users.atw.hu/tunedthings/viewtopic.php?p=328243#328243
http://oldsite.giessen46ers.de/fantalk/viewtopic.php?f=3&t=188040
http://horsecity.ru/phpBB3/viewtopic.php?f=34&t=220298
https://talk.hyipinvest.net/threads/237967/
http://forum.bandingklub.cz/viewtopic.php?f=23&t=1095200
http://forum.spolokmedikovke.sk/viewtopic.php?f=21&t=935231
https://mmomakemoneyonline.net/threads/kasyna-online-paysafecard-lub-dobre-kasyna-internetowe.471714/