External Links and References
- Denshi Blocks Mfg. Co. Ltd. Home Page (in Japanese)
- Gakken's EX-150 Page (in Japanese)
- Dostál, J. Electronic kits in education. Olomouc, EU: Votobia, 2008. 74 s. ISBN 978-80-7220-308-6.
Read more about this topic: Denshi Block
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