ঐকিক নিয়ম | oikik niyom math | bcs math



লাভ ক্ষতি – profit loss (part -1) https://youtu.be/yt09NSrbNZM লাভ ক্ষতি- profit loss (part -2) …

source

Leave a Reply

Your email address will not be published. Required fields are marked *