RAHMAWATI, I.; SHABRINA, N.; FACHRI, B.; AMINI, H.; PALUPI, B.; RIZKIANA, M.; NURTSULUTSIYAH, N.; PRADIPTA, S.; AFWAL, D.; REZA, M. Effect of Time Variation on Chlorophyll Concentration in Cocoa Leaf Extraction using the UAE (Ultrasonic Assisted Extraction) Method. Jurnal Kartika Kimia, v. 5, n. 1, p. 58-63, 25 maio 2022.