https://docs.google.com/presentation/d/17YMjqYWkaPoi7pV1WqaOBK9sKkPgPrwq/edit?usp=sharing&ouid=102628717481300448816&rtpof=true&sd=true, https://docs.google.com/presentation/d/1GRJGHA1aJtKFjLeZPdp_mNyA4SL-m5kN/edit?usp=sharing&ouid=102628717481300448816&rtpof=true&sd=true, https://docs.google.com/presentation/d/1IojEYUmW21Ujk_RsTOXOa8Ss-LqmE_1C/edit?usp=sharing&ouid=102628717481300448816&rtpof=true&sd=true, https://drive.google.com/file/d/1UnPgMZHuX3gDckFId8UnOLPEXM-FhSq0/view?usp=sharing