Management Information System, homework help

I want to write essay about Management Information System 

The first paragraph about Management Information System ( introduction)

write about MIS 

for example:

what is the MIS ?

how it works?

The second paragraph about FIGURE 1.7 THE BUSINESS INFORMATION VALUE CHAIN

I upload it

The third paragraph about FIGURE 1.8 VARIATION IN RETURNS ON INFORMATION TECHNOLOGY INVESTMENT

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the fourth paragraph about FIGURE 3.8 PORTER’S COMPETITIVE FORCES MODEL

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the fifth paragraph about FIGURE  3.9 THE VALUE CHAIN MODEL

the sixth paragraph is conclusion. 

also I want one sources and APA format.

I want around 3 papers. 

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