Volume 13, Issue 1, January-December, 2019

From the Editors

Papers

1. Guitar Pick Thickness and Sound Quality of an Acoustic Guitar
  Makjumroen, N., Prugsamas, P., Yoadsanit, S.

2. Coefficient of Restitution of Badminton Smashes
  Tee Monsereenusorn

3. Antioxidant Properties of Fresh and Powdered Turmeric, Ginger, and Thyme
  Barbara Walkowiak

4. Coefficient of Restitution of a Squash Ball
  Marvin Limpijankit

5. Hole Diameter and Sinking Time of Water Clocks
  Brian Changkwon Yoon

 

ISSN 2408-1884