Items where Author is "Butar-butar, Ronal"

Silitonga, Ernesto Maringan and Sitompul, Harun and Harahap, Rumilla and Sebayang, Nono and Butar-butar, Ronal and Tambunan, Iskandar (2018) Effect of mineralogical and physical characteristic of pozzolanic binders on enhancing strength in soil improvement work. In: 2nd Nommensen International Conference on Technology and Engineering, 19-20 Jul 2018, Medan.