Putri, H. C., P. Cahya Nugraha, E. Yulianto, and A. Bhatt. “Use of a Portable Particle Counter to Analyze Particle Stability Time in a Biological Safety Cabinet (BSC)”. Journal of Electronics, Electromedical Engineering, and Medical Informatics, Vol. 4, no. 2, Apr. 2022, pp. 77-83, doi:10.35882/jeeemi.v4i2.4.