Penulis

Ratni Sirait

• Earthquake vulnerability mapping based on probabilistic seismic hazard analysis (PSHA) in the Nias Islands, Indonesia Astri Angraeni, Lailatul Husna Lubis, Ratni Sirait, Reinhard Sipayung Vol. 21, No. 2, 2024 · 9 dilihat
• Morphology test of activated charcoal from oil palm fronds with H2SO4 and NaOH activators Debby Marantika, Masthura Masthura, Ratni Sirait Vol. 21, No. 1, 2024 · 7 dilihat
• REDUKSI BAKTERI TOTAL COLIFORM DAN ESCHERICHIA COLI PADA AIR SUMUR DENGAN MENGGUNAKAN POT KERAMIK BERBAHAN SEKAM PADI DAN ZEOLIT Masthura Masthura, Ratni Sirait, Nurul Rizki Amalia Vol. 20, No. 3, 2023 · 7 dilihat