An Experimental Study on Microalgae Oil Extraction Through Ultrasound-assisted Algasonic MachineEndrika Widyastuti, Ratih Dewi, Dela Ayu Putriajati, Ariella Melody Danny and Joko PrasetyoBIO Web Conf., 165 (2025) 06002DOI: https://doi.org/10.1051/bioconf/202516506002