Indonesia international Erol Iba opened the scoring in the fifth minute before Gonzalez took over, finding the net in the 15th and 20th minutes to put the home side in complete control.

The Uruguayan rounded off his hat-trick by converting a penalty in the 29th minute for his league-leading eighth goal of the campaign.

Budi Prasetyo completed the rout after the interval with a goal in the 57th minute as Persik improved their record to six wins and six losses in the Western Conference.

Persija Jakarta moved up to second place in the standings after a 2-0 win at Persela Lamongan.

Bambang Pamungkas headed home Persija's opening goal in the 35th minute before his strike partner Aliyudin doubled the capital side's advantage two minutes later.

Last year's league runners-up PSIS Semarang routed Semen Padang 3-0, including a brace from Nigerian midfielder Theophilus Ebi Sukore, while Persita Tangerang squeezed past Pelita Jaya Purwakarta 1-0 with a 67th-minute goal by striker Supaham.

In the Eastern Conference, Copa Indonesia holders Arema Malang ended their nine-match losing run streak with a 2-1 win against east Javan rivals Persekabpas Pasuruan 2-1.

Indonesia international winger Elie Aiboy put Arema ahead in the seventh minute before Patricio Morales made it 2-0 in the 24th minute.

Persekabpas pulled a goal back before the interval through Barthelemy Bessala, but the "Crazy Lions" managed to hang on for the spoils.

Persijap Jepara moved up five spots in the standings to second place after a 1-0 win over Persis Solo, courtesy of a ninth minute striker by Brazilian Evaldo Silva.

Pupuk Kaltim Bontang recorded a 2-0 victory over Deltra Sidoardjo thanks to a brace by Jossiah Seton.