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OPX stands for “Operation Playback” and is a comprehensive set of questions and answers to help you test how well you retained the information from the course. Here are all our publications:

One Comment »

  • Miah M Seraj said:

    I am one of the student. I need copy of the PPN LOG I took that class in Brooklyn, New York. I am now moved to Houston, Texas. If you help me to get copy on PDF I will really appreciate.

    My email address : baraipara@gmail.com

    Thank you and Jajakallah

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