Robby Ferdian
https://scholar.google.co.id/citations?user=z09B2AYAAAAJ&hl=id&oi=ao

Study Program Music Education, Faculty of Language and Arts, State University of Padang
Indonesia

Study Program Music Education, Faculty of Language and Arts, State University of Padang

Irdhan Epria Darma Putra
Study Program Music Education, Faculty of Language and Arts, State University of Padang
Indonesia

Study Program Music Education, Faculty of Language and Arts, State University of Padang

Hengki Armez Hidayat
Study Program Music Education, Faculty of Language and Arts, State University of Padang

Study Program Music Education, Faculty of Language and Arts,
State University of Padang

Ressy Fitria
Department of Geodetic Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta, Indonesia
Indonesia

Department of Geodetic Engineering, Faculty of Engineering, Gadjah Mada University, Yogyakarta, Indonesia

Revellame Revellame
National Irrigation Administration, Philippines
Philippines

National Irrigation Administration, Philippines

Roald Marck J.
National Irrigation Administration, Philippines
Philippines

National Irrigation Administration, Philippines