by Heppy, Fredia, Mulyana, Roza, Afrainin Syah, Nur, Tjandrawinata, Raymond R.
Published in Saudi pharmaceutical journal (01.04.2023)

by Afriza, Dhona, Heppy, Fredia
Published in Journal of International Dental & Medical Research (01.01.2023)

by Yuliawati, Vina, Vani, Ade Teti, Heppy, Fredia
Published in Health and Medical Journal (31.12.2020)

by Hasni, Dita, Sona, Althof, Anissa, Mutiara, Heppy, Fredia
Published in Jurnal Kedokteran dan Kesehatan (30.01.2020)