Siregar, Ichwanul Malik, Department of Agrotechnology, Faculty of Agriculture, Universitas Sebelas Maret, Surakarta, Central Java 57126, Indonesia
Siregar, Indah Kesuma
Siregar, Irma Isroyani, Universitas Muhammadiyah Sumatera Utara Jl. Muchtar Basri No. 3 Medan 20238 Indonesia
Siregar, Izuddinsyah
Siregar, Luthfi A. Mahmud, Universitas Sumatera Utara
Siregar, Maimunah, Department of Agrotechnology, Faculty of Agriculture, Universitas Pancabudi, Medan, North Sumatera, Indonesia
Siregar, Masyunita, Universitas Jambi
Siregar, Mawaddah Putri Arisma, Department of Agrotechnology, Faculty of Agriculture, Universitas Teuku Umar, Aceh, North Sumatera, Indonesia
Siregar, Muhammad Adam, Universitas Gadjah Mada
Siregar, MY, Pendidikan Matematika, Program Pascasarjana, Universitas Negeri Medan, Medan, Indonesia

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