LC-MS/MS and Cytotoxic Activity Analysis of Extract and Fraction of Calophyllum soulattri Stembark oleh Muhamad Salman Fareza, Nur Amalia Choironi, Sri Sutji Susilowati, Melina Puspita Rini, Vyola Festihawa, Irfansyah Septian Nur Fauzi, Esti Dyah Utami, Sarmoko Sarmoko