อยากทราบเว็บที่สอนผสมจังครับ แบ่งปันทีครับ
this website
https://www.perfumersworld.com
Go to The Perfumer's Wizard page (must be logged in first).
You can try the Fundamental course as well. It's free as well. There are also basic tutorial videos on YouTube. The name of the channel is the same as the website.