Tanjung, Rahman and Mawati, Arin Tentrem and Ferinia, Rolyana and Nugraha, Nur Arif and Simarmata, Hengki Mangiring Parulian and Sudarmanto, Eko and Hasibuan, Abdurrozzaq and Dewi, Idah Kusuma and Gandasari, Dyah and Purba, Bonaraja and Purba, Sukarman and Silalahi, Marto (2023) Organisasi dan Manajemen. Technical Report. Yayasan Kita Menulis.

Revida, Erika and Purba, Sukarman and Simanjuntak, Mariana and Permadi, Lalu Adi and Simarmata, Marulam M. T. and Fitriyani, Endah and Siagian, Valentine and Murdana, I Made and Faridi, Ahmad and Putri, Dini Mustika Buana and Simarmata, Hengki Mangiring Parulian and Suwandi, Andreas and Pratiwi, Ilma Indriasti and Handiman, Unang Toto and Purba, Bonaraja (2022) Manajemen Parisiwata. Yayasan Kita Menulis, Medan.

Sudarmanto, Eko and Astuti, Astuti and Kato, Iskandar and Basmar, Edwin and Simarmata, Hengki Mangiring Parulian and Yuniningsih, Yuniningsih and Irdawati, Irdawati and Wisnujati, Nugrahini Susantinah and Siagian, Valentine (2021) Manajemen Risiko Perbankan. Yayasan Kita Menulis, Medan.

Tanjung, Rahman and Mawati, Arin Tentrem and Ferinia, Rolyana and Nugraha, Nur Arif and Simarmata, Hengki Mangiring Parulian and Sudarmanto, Eko and Hasibuan, Abdurrozzaq and Dewi, Idah Kusuma and Gandasari, Dyah and Purba, Bonaraja and Purba, Sukarman and Silalahi, Marto (2021) Organisasi dan Manajemen. Yayasan Kita Menulis, Medan. ISBN 978-623-6840-81-8

Siagian, Valentine and Rahmadana, Muhammad Fitri and Basmar, Edwin and Purba, Pratiwi Bernadetta and Nainggolan, Lora Ekana and Nugraha, Nur Arif and Siregar, Robert Tua and Lifchatullaillah, Endang and Marit, Elisabeth Lenny and Simarmata, Hengki Mangiring Parulian and Prasetya, Agustian Budi and Purba, Bonaraja (2020) Ekonomi dan Bisnis Indonesia. Yayasan Kita Menulis, Medan.