Gaya APA

Ramli, Soehatman. (2019). Global Trends in Safety 2020 (-). : Yayasan Pengembangan Keselamatan Prosafe Institute.

Gaya Chicago

Ramli, Soehatman. Global Trends in Safety 2020. - : Yayasan Pengembangan Keselamatan Prosafe Institute, 2019. .

Gaya MLA

Ramli, Soehatman. Global Trends in Safety 2020. - : Yayasan Pengembangan Keselamatan Prosafe Institute, 2019. .

Gaya Turabian

Ramli, Soehatman. Global Trends in Safety 2020. - : Yayasan Pengembangan Keselamatan Prosafe Institute, 2019. .