7 1 10 Adlin U. Lubis Additional Author Iman Yani Harahap Additional Author TEGUH WAHYONO Additional Author M. Lukman Fadli Additional Author A. Sipayung Additional Author P. Purba Additional Author Rolettha Y. Purba Additional Author R. A. Lubis Additional Author Fidber Chan Additional Author Sudharto Ps Additional Author D. Ansyari Additional Author Okky S. Dharmaputra Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1993 COVER_VO._13_NO.1_FEBRUARI_1993.jpg A. Djamin Additional Author A. Sipayung Additional Author Fidber Chan Additional Author Kusnu Martoyo Additional Author Suwandi Additional Author Tejoyuwono Notohadiprawiro Additional Author Asep T. Toyib Additional Author R. Desmierde de Chenon Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1986 COVER_VOL.6_NO.2-3_DESEMBER_1986.jpg Endang Syamsuddin Additional Author R.A. Lubis Additional Author Fidber Chan Additional Author Sudharto Ps Additional Author Suwandi Additional Author A.U. Lubis Additional Author Ch. Hutauruk Additional Author R. Sukarji Additional Author Herman Halim Additional Author Kusnu M Additional Author Y.R. Lubis Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1984 COVER_VOL.4_NO.1_APRIL_1984.jpg Adlin U. Lubis Additional Author Fidber Chan Additional Author Suwandi Additional Author Herman Halim Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1985 COVER_VOL.5_NO.3_DESEMBER_1985.jpg Adlin U. Lubis Additional Author A. Sipayung Additional Author Fidber Chan Additional Author Suwandi Additional Author A.D. Koedadiri Additional Author Harjono Simangun Additional Author H.S. Situmorang Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1987 COVER_VOL.7_NO.2_AGUSTUS_1987.jpg Ir. H. Adlin U. Lubis Additional Author Ir. Fidber Chan Additional Author Ir. E. Manalu Additional Author Ir. Kiki Siregar Additional Author Ir. P. Purba Additional Author Ir. H.S. Situmorang Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1987 Adlin U. Lubis Additional Author P. Purba Additional Author Fidber Chan Additional Author Sri Wahyuni Additional Author Suheimi Syukur Additional Author mixed material 02161427 Pematang Siantar Pusat Penelitian Marihat 1986 COVER_VOL.6_NO.1_APRIL_1986.jpg