5 1 20 Suharto Abdul Majid Primary Author Joed David Willem Primary Author Charles An Primary Author Yosi Pahala Primary Author mixed material 2407635X International Journal of Social Sciences and Management Review 2019 Hendro Kuntohadi Primary Author Johar Samosir Primary Author Salahudin Rafi Primary Author Dewi Nusraningrum Primary Author Sonya Sidjabat Primary Author mixed material 20054238 Institute of Advanced Scientific Research, Inc. 2020 R T Hafiz Primary Author V A Rambe Primary Author D H Triyasa Primary Author Muhammad Rifni Primary Author mixed material 26225778 Jakarta ITL Trisakti 2019 Nursery Alfaridi S Nasution Primary Author Nuryadi Primary Author Andry Yudha Pratama Additional Author mixed material 23565519 Jakarta ITL Trisakti 2018 Charles An Additional Author Soma Ariyaka Primary Author Dimas Primary Author Rizqom Tafsir Additional Author Sulistiyono Antonius Additional Author mixed material 26225778 Jakarta ITL Trisakti 2018