License and Copyright
This is an open-access journal published by the Master’s Program of Public Health, Universitas Sebelas Maret, Surakarta. This journal is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/). The CC BY 4.0 License allows re-users to copy, redistribute, remix, adapt, transform, and build upon the material in any medium or format for any purpose, even commercially, provided that the creator (author) and source are properly cited. Attribution means that people can use the author’s work provided they give appropriate credit to the author, provide a link to the license, and indicate if changes were made. Under the CC BY 4.0 license people can use the author’s work even if they intend to make money from it.
The purposes of this licensing are fourfold: (1) To increase the visibility and collaboration of scientific work; (2) To encourage sharing and innovation of the work in the public interest; (3) To retain copyright ownership; dan (4) To ensure proper attribution to the original creator.
Under the CC BY 4.0 License, the author still holds the copyright of the work without restrictions. The author(s) can grant the general public the license to their work without losing copyright to that work. Re-users of the work do not have to obtain permission from the author and yet the author(s) retain their copyright ownership. Under the CC BY 4.0 license, the author(s) grant the publisher of this journal the right of first publication, and everyone in the world is permitted to use their work.