Article Metrics

Abstract view : 666 times

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 Annissa Annissa, Revensyah Sihombing, Siti Rahmadhani Siregar, Trisnawati Hutagalung

Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.