Tamrin, K. F., A. N. Adilah, M.M. Hamdi, and R.P. Jong. 2018. “Smartphone-Based Laser Glucometer for Non-Invasive Measurement of Glucose Level of Diabetic Patients”. Borneo International Journal EISSN 2636-9826 1 (1), 27-32. https://majmuah.com/journal/index.php/bij/article/view/8.