E. U. H. Patangara, V. D. Yunianto, B. Sukamto, and L. Krismiyanto, “THE USE OF CALCIUM IN QUAILS DURING EGG HATCHING PHASE BY ADDING YACON LEAF POWDER (Smallanthus sonchifolius)”, BJAS, vol. 1, no. 1, pp. 21–27, Apr. 2019.