Issue of the Journal of Natural Sciences Volume 1 no 1 March 2020, and Volume 1 no 2 July 2020 Available at Link: https://mahesainstitute.web.id/ojs2/index.php/jons/issue/archive .The Journal has reported changes to the Website Address or the new URL due to the old website address having problems with the system / error, so that the journal makes a transition from the previous published edition to the new website address, namely: https://journal.mahesacenter.org/index.php/jonas/index.
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