| 2009 |
Kouji Takao |
RubyCocoa/HotCocoa(RHC) - Let's develop an application of MacOS X with Ruby - |
| 2011 |
Kouji Takao |
MacRuby on Rails |
| 2014 |
Kouji Takao |
Kids, Ruby, Fun!: Introduction of the Smalruby and the Ruby Programming Shounendan |
| 2017 |
Kouji Takao |
Smalruby : The neat thing to connect Rubyists and Scratchers |