Hasibuan, Samsul A Rahman Sidik, and Hakas Prayuda. “Determination of Resultant Forces for 2D Hyperstatic Frames Using Android-Based Frame Design Application and Finite Element Analysis”. Andalasian International Journal of Applied Science, Engineering and Technology, vol. 3, no. 3, Jan. 2024, pp. 230-4, doi:10.25077/aijaset.v3i3.109.