"Research is a process. It is a continuum of stages that together make up a research plan. Below is a tentative sketch of what we think are the seven important steps of a research plan. For each of these stages we featured a short collection of web tools to help you carry it out."
Google scholar is a credible search engine source for students and teachers. Google Scholar allows you to search across a wide range of academic literature. It draws on information from journal publishers, literature-peer-reviwed articles and etc.