The purpose of this study was to investigate how student writerssearch various sources to generate text’s contents. For this purpose, 6thstudent writers’ visual recording data, interview data, texts data were collectedand analysed. Study results showed that sources searching process has an effecton topic decision. And participants didn’t finish sources searching andselecting before writing but search sources and write repeatedly. Third,participants evaluate the quality of sources. However they could not evaluatethe quality properly and could not synthesize information properlybecause of a few source. Based on the results, we need to understand the importance of writers’sources searching process and to seek teaching strategies to helpwriters to select proper sources to write.