Botahala, Loth, Tribuana Kalabahi University, Indonesia

• Vol 19, No 2 (2020): November - Artikel
  Determination Rice Husk Amorphous Silica In Alor District As An Additive On The Manufacture Of Composite Portland Cement
  Abstract  PDF
• Vol 20, No 1 (2021): May - Artikel
  Study Of Chemical Concentration Of Main Ingredients For Making Portland Composite Cement
  Abstract  PDF