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Found 1 from your keywords: Author : "Widyawan, Kevin Andhika 9D"
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THE EFFECT OF PHOTO DEGRADATION OF BOTTLE (PETE, HDPE, PP, PS) TO THE CHANGES OF PH MEASUREMENT

Author(s) : Nicole, Alexandria Samantha 9D - Wiputri, Felicia 9D - Widyawan, Kevin Andhika 9D -