Efek Ekstrak Etanol Biji Kakao (Theobroma cacao) sebagai Antibakteri terhadap Pseudomonas aeruginosa secara In Vitro (The Effect of Ethanolic Extract of Cocoa Beans (Theobroma cacao) as an Antibacterial against Pseudomonas - Kumalasari, Devi Chintya (UPT Penerbitan Universitas Jember, 2015)