Bài 1: Vì sao nên sử dụng GTM

 Tham khảo Link GTM: https://tagmanager.google.com/ Google Tag Manager plugin cho website WordPress: Google Tag Manager plugin Naming convention: https://hammajack.com.au/get-digital/best-practice-naming-conventions-for-google-tag-manager Timer nâng cao: https://www.clickinsight.ca/blog/timer-triggers-google-tag-manager-v2 https://www.simoahava.com/analytics/fire-tag-upon-scroll-depth-and-time-spent/ Chrome extensions: Google Tag Assistant Facebook Pixel Helper