Yosef Sarwanto and Wisnu Ari Adi, “CRYSTALLOGRAPHIC STRUCTURE AND MAGNETIC PROPERTIES OF PSEUDOBROOKITE Fe2-XNiXTiO5 SYSTEM (x = 0, 0.1, 0.2, 0.3, 0.5 and 1)”, j. sains materi indonesia, vol. 19, no. 2, pp. 47–53, Jan. 2018.