Funding rounds of startups: series A, B, and C and their sources: the funding rounds of the startup "Yassir" in series A and B as a modelLassoued Abdelhalim، Omar Melik، Kaoudja Mohamed TaharBrazilian Journal of Businessالمجلّد 7، (2)، الصفحات e818912025مقال وصول مفتوح