लेखक: Maibach

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2 द्वारा ईबुक Maibach

Klay & Maibach: ALSTAT PC
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जर्मन
DRM
€36.25
Abels & Maibach: pH of the Skin: Issues and Challenges
The concept of expressing acidity as the negative logarithm of the hydrogen ion concentration was defined and termed p H in the beginning of the 20th century. The general usefulness of the p H concep …
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अंग्रेज़ी
DRM
€432.43