“EXTRACT OF GAMBIR BY PRODUCT AND FLORA ACTIVE CARBON AS ANTI BACTERIAL ACTIVITY TOWARD Bacillus Subtilis”. Prosiding Seminar Teknologi Dan Agribisnis Peternakan (STAP), vol. 5, May 2018, pp. 404-7, https://jnp.fapet.unsoed.ac.id/index.php/psv/article/view/502.