Bambang Hendra Siswoyo
Faculty of Fisheries, Dharmawangsa University, Jalan. KL. Yos Sudarso No.224, Medan, North Sumatra, 20115, Indonesia
Indonesia

Siti Mardiana
Graduated School of Agricultural Science, Medan Area University, Jalan. Setia Budi No. 79 B/ Jalan Sei Serayu No. 70A Medan, North Sumatra 20121, Indonesia.
Indonesia

Raja Sabrina
Department of management, faculty of economics and business, Universitas Muhammadiyah Sumatera Utara, Indonesia, Jl. Kapten Muchtar Basri No.3, Medan, North Sumatera 20238, Indonesia
Indonesia