B. P. W. Wijaya, D. N. Setyowati, and D. P. Lestari, “EFFECT OF ADDITIONAL DRAGON FRUIT (Hyloceraus polyrhizus) EXTRACT ON ARTIFICIAL FEED ON THE BRIGHTNESS OF BETT FISH (Betta sp.)”, jfn, vol. 1, no. 2, pp. 81-92, Dec. 2021.