You'll likely find it on the Home Screen. These steps will also work on an iPod touch. It's near the top of the Settings page. If the switch next to Wi-Fi is already green, skip this step. You should see your preferred wireless network name below the "CHOOSE A NETWORK" heading; tapping it will prompt your device to begin connecting. If you're using a home network and you didn't set a password, you'll likely find the Wi-Fi password on the bottom or the back of the router. If the network has no password, you'll connect automatically after tapping the network's name. It's in the top-right corner of the screen. As long as the password is correct, doing so will prompt your device to connect to the network.

How would you rephrase that briefly using Indonesian?
Buka Settings. Ketuk Wi-Fi yang berada di bagian atas halaman Settings. Alihkan tombol Wi-Fi ke "On". Pilih nama jaringan yang diinginkan. Masukkan kata sandi jaringan ketika diminta. Ketuk Join yang terletak di pojok kanan atas.