Pengaruh enkapsulasi ekstrak etanol daun jambu biji (psidium guajava l) dengan liposom terhadap aktivitas antiproliferasi sel kanker payudara t47d = The effect of encapsulation guava leaves (psidium guajava) ethanolic extract in liposome against antiproliferative activity in t47d breast cancer cell / Izmiaty Nurjanah