Refbacks
- There are currently no refbacks.

This work is licensed under a Creative Commons Attribution 4.0 International License.
Nurlela Ginting
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Indonesia
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Alvina Oktavia
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Indonesia
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Novelyn Abigail Christ Merry Tambunan
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Indonesia
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Jelita Geovani Sitompul
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Indonesia
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Widya Arwita
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Indonesia
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Rizal Mukra
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
Indonesia
1,2,3,4,5 FMIPA, Universitas Negeri Medan, Indonesia
CONTACT :
ATTRIBUTE :
TOOLS :
TEMPLATE BEST JOURNAL :
INDEXING :
The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader).
If you would like more information about how to print, save, and work with PDFs, Highwire Press provides a helpful Frequently Asked Questions about PDFs.
Alternatively, you can download the PDF file directly to your computer, from where it can be opened using a PDF reader. To download the PDF, click the Download link above.
