in reference to
US /ɪn ˈref.ər.əns tuː/
UK /ɪn ˈref.ər.əns tuː/

1.
berkaitan dengan, mengenai
concerning or regarding something; in relation to
:
•
I am writing in reference to your recent inquiry.
Saya menulis berkaitan dengan pertanyaan anda baru-baru ini.
•
His comments were made in reference to the new policy.
Komennya dibuat berkaitan dengan dasar baru itu.