Saputra RD, Mildawati R. Analisis Efektifitas Penggunan Excavator Long Arm dan Excavator Standart Arm Pada Kegiatan Normalisasi Sungai Muara Kelantan Kabupaten Siak Sri Indrapura: Efectivity Analysis of The Usilization of Standard and Long Arm Exavator on The Project of Muara Kelantan River Normalisation in The District of Siak Sri Indrapura. SAINTIS [Internet]. 2016 Oct. 1 [cited 2026 Jun. 30];16(2):81-90. Available from: https://journal.uir.ac.id/index.php/saintis/article/view/1757