- Livre électroniqueBig Book of 150 Unique Puzzles & SolutionsMehmet Esabil Yurdakul
- Livre électroniqueWorld’s Great Scientific Puzzles Book to Challenge & SolutionsMehmet Esabil Yurdakul
- Livre électroniqueBig Book of 150 Unique Puzzles & SolutionsMehmet Esabil Yurdakul
- Livre électronique100 Puzzles Book of Magic FiguresMehmet Esabil Yurdakul
- Livre électronique100 Puzzles Book of Magic FiguresMehmet Esabil Yurdakul
- Livre électroniqueWorld’s Great Scientific Puzzles Book to Challenge & SolutionsMehmet Esabil Yurdakul