G., Tromp, J. et al. 2018. Usability Testing of “CHIsel”: Cultural Heritage Information System Extended Layers of Interactive 3D Computer Generated Images and Relational Database. International Journal of Engineering & Technology. 7, 2.28 (May 2018), 100–105. DOI:https://doi.org/10.14419/ijet.v7i2.28.12888.