Omar, Ahmad Fairuz, Universiti Sains Malaysia, Malaysia

• Vol 24, No 2: November 2021 - Electronics
  Development of an optical pH measurement system based on colorimetric effect
  Abstract  PDF
• Vol 27, No 3: September 2022 - Electronics
  Optical absorbance of RGB LEDs in pH measurement of colorimetric solution with phenol red reagent
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The Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
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