Arifullah, E., Zaim, Y., Aswan, A. and Djuhaeni, D. 2019. Tiering Style and Its Interpretation: Ichnofabric Study in Balikpapan Formation, Kutai Basin, Indonesia. Journal of Mathematical and Fundamental Sciences. 51, 1 (Apr. 2019), 90-102. DOI:https://doi.org/10.5614/j.math.fund.sci.2019.51.1.8.