Uji antibakteri jerawat secara in vitro, stabilitas fisik dan patch test krim yang mengandung Etil P-Metoksi Sinamat dari Rimpang Kencur (Kaempferia galanga L.) = Antibacterial tests against acne in vitro, the physical stability and patch test using cream containing Ethyl P-Methoxy Cinnamate extracted from Rimpang Kencur (Kaempferia galanga L.)