The AMA Manual of Style requires that you cite each reference in your writing in numerical order as they appear by using superscript numbers.
Each reference should be cited in the text, tables, or figures in consecutive numerical order through the use of superscript numbers.
Here is what properly formatted in-text citations would look like in your paper:
This sentence refers to content taken from the first item in your reference list, that is why the number ‘one’ appears at the end of this sentence.1 Keep in mind that if you are quoting, paraphrasing, or summarizing information in your work, you need to indicate the original source of information.2 The ‘three’ at the end of this sentence refers to the third item listed in your reference list.3 Notice that the superscript numbers appear immediately after the period.1,3
see more in Step 1: When to cite
When citing AMA style, inclusion of page numbers in an in-text citation is not required, rather IT IS OPTIONAL!