مؤلف: Maibach

الدعم

2 كتب إلكترونية بواسطة Maibach

Klay & Maibach: ALSTAT PC
PDF
ألمانية
DRM
€36.25
Christian Surber & Christoph Abels: 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 …
EPUB
الإنجليزية
DRM
€239.99