Indah, N., Pangestu, D. A., Utomo, S. B., & Youlia, R. P. (2023). DEVELOPMENT OF A PORTABLE MOTOR VEHICLE EMISSION TEST SYSTEM BASED ON ARDUINO WITH ANDROID INTERFACE. International Journal of Innovation in Mechanical Engineering and Advanced Materials, 5(2), 43–48. https://doi.org/10.22441/ijimeam.v5i2.18832