Сертификаты

HTML — https://goo.gl/k78DnL

CSS — https://goo.gl/mEjVwZ

JavaScript — https://goo.gl/ahTFEP

PHP — https://goo.gl/5JRgFJ

jQuery — https://goo.gl/iE4nLA

SQL — https://goo.gl/gJZBXt