Author(s) : Rachbini, Didik J. - Amidhan - Arinanto, Satya - Siahaan, Maruarar - Aritonang, Baharuddin - Bedjeber, Zain - Ayuni, Qurrata - Bakri, Bala - Kadir, Herman - Kamis, Margarito -

Author(s) : Rachbini, Didik J. - Siahaan, Maruarar - Budimanta, Arif - Nurdin, Iwan - Sori, Alirman - Aziz, Djamal - Badjeber, Zain - Reumi, Frans -

Author(s) : Arifin, Anwar - Siahaan, Maruarar - Soegito, AT. - Tobing, Jakob - Samekto, FX. Adji - Kiaidemak, Ali Hardi - Yusuf, Bukhori - Amin, M. Sholeh - Sori, Alirman - Joher, Nuzran -

Author(s) : Siahaan, Maruarar -