Vol 1, No 1 (2021)

JUNE

Table of Contents

Articles

Design and development of water condition measurement in soil using a capacitive based sensor
Siti Balqis Dongoran, Juniastel Rajagukguk
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1-4
Antibacterial activity of Clidemia hirta leaf extract against pathogenic bacteria with variation of solvents
Evi Rahayu, Ahmad Shafwan S Pulungan
PDF
5-9
Surface science approach of MnO-CeOx(111) mixed oxide
Elfrida Ginting
PDF
10-20
Analysis of problem based learning colaborative on critical thinking ability
Retno Dwi Suyanti, Desi Natalia Purba, Tita Juwitaningsih
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21-24
Analysis of dug well water imminity in Sikapas Village, Mandailing Natal District
Riski Nainggolan, Rappel Situmorang
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25-29
Exploration of extraceluller enzymes-producing bacteria symbiont Sponge Phorbas sp. from Nngge Island, Sibolga
Endang Sulistyarini Gultom, Sarah Gladies Aurelia Sijabat, Ulfa Mayasari
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30-34