https://dispora.pekanbaru.go.id/ https://iran.unhabitat.org/ https://labkes.pekanbaru.go.id/ https://phki.untan.ac.id/ https://feb.untan.ac.id/ https://heylink.me/jagungbetslot88uangasli/

Gaya APA

Wilkinson, G., Hariyanto, D. (2004). Complete english grammar special edition . Jakarta: Buana Pustaka Indonesia.

Gaya MLA

Wilkinson, George., Hariyanto, Dony. "Complete english grammar special edition". Jakarta: Buana Pustaka Indonesia, 2004. UMUM.