Astuti, P. ., Suripta, H. . and Irawati, D. A. . (2023) “Study of Synergistic Effects of Herbal Meniran (Phyllanthus Niruri L) and Sambiloto (Andrographis Paniculata) as A Substitute Commercial Additive Feed to Improve Immunity Response and Free Chicken Egg Production ”, Jurnal Penelitian Pendidikan IPA, 9(6), pp. 4673–4678. doi: 10.29303/jppipa.v9i6.3795.