জ্যোতির্বিজ্ঞানে এককের ব্যবহার এবং নিয়ম | Units in Astronomy | BDOAA

Astronomy Basic Series: Part 2
Instructor:
Fahim Rajit Hossain
IOAA Team Leader, Bangladesh
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[@user-pv8xj4vj6b]

Thunkyou sir.

[@sowmikbhadra4377]

Very informative!!
Thanks BDOAA for uploading this video.

[@sadiaislamorin]

kon boi theke preparation nibo????

[@bdoaa]

Please check bdoaa.org/preparation