Sitepu, Gressty Sari Br, et al. “Healthy Cookies: Nutritious Food Innovation Through Fortification By-Products of Tuna (Thunnus sp.) Fish Bone Flour”. Advances in Tropical Biodiversity and Environmental Sciences, vol. 7, no. 2, June 2023, pp. 55-62, doi:10.24843/ATBES.2023.v07.i02.p03.