PDF.: https://drive.google.com/file/d/199TAf42h1Mr8ck5siieLNuhndioJl267/view?usp=sharing
PPT: https://docs.google.com/presentation/d/1orPPHNL3UzV_1PlKz49Zhwwru5ZVRlNq/edit?usp=sharing&ouid=110835173471933525614&rtpof=tr...