Rizqi, Al Hussein Flowers, and Hendri Tri Purnomo. 2021. “Correlation of Lithofacies and Depositional Environment Using Markov Chain Analysis in Sambipitu Formation at Ngalang River, Gunungkidul, Yogyakarta, Indonesia”. Sustinere: Journal of Environment and Sustainability 5 (1):49-63. https://doi.org/10.22515/sustinere.jes.v5i1.124.