Any 4 articles well written with references -- 2

Hi, It needs to be at least 1000 or more words and This is what it will need: •Publisher's message is developed with correct tone and varied diction or visual techniques •Media is high quality •Supporting elements enhance visitor engagement •If relevant, contains very good step-by-step instructions or useful analysis •Content includes concrete and vivid detail, and is not promotional •The content contains a logical structure that supports the publisher's message •Title is clear, but may be broad •Necessary subheadings have been included and are descriptive and supportive •Visually the content is attractive •All links, media, and supporting elements (including products) are on topic and complement the content visually. •Deviations from standard usage are infrequent and minor, and do not significantly detract from the page •Demonstrates a good command of the English language with appropriately chosen words and readable sentences Summary/conclusion at the end very important Let me [login to view URL]