5.2 External Standard Calibration

[@asjednazir6582]

Gold medal for u sir 🎖

[@rholin0997]

"left over boat parts..." 🤣

[@norhaimadibaratun8350]

Why can't the prof in the university teach like you? They just keep giving us procedures of the lab activities we don't know the concept or purpose of. Thank you very much, Sir. Great explanation.

[@chetaelena3317]

thank u!!!!!!!!!!!

[@sureshmadhavan3697]

Clear explanation..great

[@rawaahaf]

Thank you sooo much 😍💜💜💜💜