Perdana Putra P, Widianti A. Splitting Tensile Strength of Soft Clay–Coconut Coir Fiber Mixtures Soaked in NaOH at Various Concentrations. IJSE [Internet]. 2026 Mar. 3 [cited 2026 Mar. 10];6(1):1063-7. Available from: https://ijsenet.com/index.php/IJSE/article/view/438