Atunggal D, Ma’ruf B, Sunantyo TA, Rokhmana CA. Evaluation on the performance of single and dual frequency low cost GPS module observation using geodetic antenna. CST [Internet]. 2018Jun.14 [cited 2024Nov.24];3(1):pp. 9-14. Available from: https://cst.kipmi.or.id/journal/article/view/78