ArchiveVolume 7, Issue 4, July 2019
Pekka Ranta
Pages: 56-60     Published Online: Sep. 12, 2019
DOI: 10.11648/j.ijsts.20190704.11        Views 42      Downloads 40
ADDRESS
Science Publishing Group
1 Rockefeller Plaza,
10th and 11th Floors,
New York, NY 10020
U.S.A.
Tel: (001)347-983-5186