It is useful to highlight the importance given nowadays to scientific journals in OJS (Open Journal Systems) at national and international level. But first we must describe briefly about free software. Free software is software that respects the freedom of the users and the community. Broadly speaking, it means that users have the freedom to run, copy, distribute, study, modify and improve the software. In other words, free software is a matter of freedom, not price (GNU, 2021).
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.