P. Harahap, M. I., & Ling, F. (2020). Design tool in T&L: RC retaining wall / Mohamad Irwan P. Harahap and Felix Ling.
Citazione stile Chigago Style (17a edizione)P. Harahap, Mohamad Irwan, e Felix Ling. Design Tool in T&L: RC Retaining Wall / Mohamad Irwan P. Harahap and Felix Ling. 2020.
Citatione MLA (9a ed.)P. Harahap, Mohamad Irwan, e Felix Ling. Design Tool in T&L: RC Retaining Wall / Mohamad Irwan P. Harahap and Felix Ling. 2020.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.