After you've downloaded the app and created an account, you can then view Instagram from a computer. To start using Instagram: 1  Download the Instagram app for iOS from the App Store, Android from Google Play Store or Windows Phone from the Windows Phone Store.
A literature review is a critical analysis of published sources, or literature, on a particular topic. It is an assessment of the literature and provides a summary, classification, comparison and evaluation.
Literature review is most important to identify the problem of the study, which can be solved by collection of data. It is very important to know that the work is doing by researcher in a research should not be repeated again. Literature review observes about the work that it is doing, is repeating unintentionally.