1. 3D4SDGs 2023 . Introduction of the 3D model provision service . Retrieved May 15, 2023 from https://3d4sdgs.net/service-en.html 3D4SDGs 2023. Introduction of the 3D model provision service. Retrieved May 15, 2023 from https://3d4sdgs.net/service-en.html
2. Carol B. Allman . 2009. Making Tests Accessible for Students with Visual Impairments: A Guide for Test Publishers , Test Developers, and State Assessment Personnel (4nd. ed.) . American Printing House for the Blind, Louisville, Kentucky. Carol B. Allman. 2009. Making Tests Accessible for Students with Visual Impairments: A Guide for Test Publishers, Test Developers, and State Assessment Personnel (4nd. ed.). American Printing House for the Blind, Louisville, Kentucky.
3. BTactile 2023 . BTactile homepage . Retrieved May 15, 2023 from https://btactile.com/ BTactile 2023. BTactile homepage. Retrieved May 15, 2023 from https://btactile.com/
4. ABC and 3D
5. Diagram Center 2015. 3D Printing for Education . Diagram Center . http://diagramcenter.org/wp-content/uploads/ 2015 /09/3D-Printing-In-Education-Quick-Start-Guide.docx. Last accessed May 15, 2023. Diagram Center 2015. 3D Printing for Education. Diagram Center. http://diagramcenter.org/wp-content/uploads/2015/09/3D-Printing-In-Education-Quick-Start-Guide.docx. Last accessed May 15, 2023.