Gaya APA

Gontor, U, D. (2020). JIHOH : Journal of Industrial Hygiene and Occupational Health Vol. 4 No. 2, April 2020 (Vol 4 Issue 2, April 2020). Ponorogo: Universitas Darussalam Gontor.

Gaya MLA

Gontor, Universitas, Darussalam. "JIHOH : Journal of Industrial Hygiene and Occupational Health Vol. 4 No. 2, April 2020". Vol 4 Issue 2, April 2020 Ponorogo: Universitas Darussalam Gontor, 2020. TEXT.