Бібліотечний кейс

https://drive.google.com/open?id=1NllGjgrtlFjtjq8bSRJ66JWdT-b5dj9T
https://drive.google.com/open?id=1jTygz_eb8sxCf16yssEsbV6Sta0Yh-yQ
https://drive.google.com/open?id=10WScQkqNLNxliKxFJ0M38PNWPuVzvLnZ
https://drive.google.com/open?id=1gM6pEf8ZuW28KqU5q9GMsGKh8ICrJosh