• 4 MERIT Library

• 4 3-D Objects, Models, Sculpture

• 2 Form perception
• 2 Pattern perception
• 2 Study and teaching (Preschool)
• 1 Audio-visual aids
• 1 Mass (Physics)
• 1 Metric system
• 1 Weights and measures

• 2 Lauri (Firm)
• 1 Learning Resources (Firm)

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