Putra , Andika Bagus Nur Rahma, Yee Mei Heong, Dewi Sabrina Meidyanti, and Anita Rahmawati. 2022. “Hi World: The Virtual Book Learning Integrated Augmented Reality to Increase Knowledge of Covid-19 Prevention in The Learning Process Post-Pandemic Era”. International Journal of Interactive Mobile Technologies (iJIM) 16 (06):pp. 176-187. https://doi.org/10.3991/ijim.v16i06.29001.