Saptono S, Gilang Trilaksono R, Adi Siswanto W. The Influences of Normal Load Variation in Direct Shear Strength Test Parameters Tuff from Candi Ijo Yogyakarta. IJET [Internet]. 2019 Jan. 24 [cited 2026 Feb. 25];8(1.1):184-9. Available from: https://www.sciencepubco.com/index.php/IJET/article/view/24658