Thi Hai Mien Pham, Phu Duong Le, and Thi Kim Tham Ta. “Attempting Near-Infrared Transillumination Imaging With Simple Instrumentation for Studying Dental Lesions”. Vietnam Journal of Science, Technology and Engineering, vol. 61, no. 2, June 2019, pp. 42-46, doi:10.31276/VJSTE.61(2).42-46.