by Wahyuni Nurwihastuti, Dwi, Juli Dwi Astuti, Anik, Yuniastuti, Eni, Bungana Beru Perangin-Angin, Reh, Simanungkalit, Nahor M
Published in Journal of physics. Conference series (01.03.2019)

by Sianturi, Desmi, Simanungkalit, Nahor M.
Published in Jurnal Geografi (Medan) (Online) (08.08.2017)

by Lumbantoruan, Walbiden, Simanungkalit, Nahor M, Pinem, Mbina
Published in JUPIIS (Jurnal Pendidikan Ilmu-Ilmu Sosial) (Online) (25.06.2017)

by Nahor M Simanungkalit, Walbiden Lumbantoruan
Published in Jurnal Geografi (Medan) (Online) (01.08.2016)

by Nahor M Simanungkalit, Walbiden Lumbantoruan
Published in Jurnal Geografi (Medan) (Online) (01.02.2016)

by Simanihuruk, Lambok A, Simanungkalit, Nahor M
Published in Tunas Geografi (17.05.2019)

by Syahrani, Hilda, Simanungkalit, Nahor M.
Published in Tunas Geografi (01.06.2017)