গুনাহ থেকে বাঁচার ৭০টি শক্তিশালী উপায় | 70 Powerful Ways to Avoid Sin 

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Fair use is a doctrine in the United States copyright law that allows limited use of copyrighted material without requiring permission from the rights holders, such as for commentary, criticism, news reporting, research, teaching or scholarship. It provides for the legal, non-licensed citation or incorporation of copyrighted material in another author’s work under a four-factor balancing test. The term “fair use” originated in the United States. A similar principle, fair dealing, exists in some other common law jurisdictions. Civil law jurisdictions have other limitations and exceptions to copyright.