APA Style

Gutierrez, K, R, Z. (2024). Upscaling oral communication skills in the 21st century global space . Mandaluyong City: Books ATBP. Publishing Corp..

MLA Style

Gutierrez, Ken, Russel, Z.. "Upscaling oral communication skills in the 21st century global space". Mandaluyong City: Books ATBP. Publishing Corp., 2024. Text.