Pola Spasial Kebakaran Lahan di Desa Bunsur dan Desa Mengkapan Kabupaten Siak Provinsi Riau = Spatial Patterns of Land Fires in Bunsur Village and Mengkapan Village, Siak Regency Riau Province

Viktimisasi struktural terhadap lingkungan akibat perluasan lahan perkebunan kelapa sawit: studi kasus di Provinsi Riau = Structural victimization of the environment due to expansion of palm oil plantations: case study in Riau Province

Alih Fungsi Lahan Tanpa Izin Di Kawasan Hutan Untuk Perkebunan Kelapa Sawit Di Kabupaten Indragiri Hulu Provinsi Riau (Analisis Peraturan Kehutanan Berdasarkan Teori Green Constitution) = The Functional shift of unlicensed forest land for oil palm plantations in Indragiri Hulu District, Riau Province (analysis forest regulation based on green constitution Theory)

Analisa Logistik Limbah Tandan Kosong Kelapa Sawit sebagai Bahan Baku Bioethanol di Provinsi Riau = Logistic Analysis of Palm Oil Empty Fruit Bunch as Feedstock for Bioethanol in Riau Province

Variasi Bahasa di Kecamatan Siak Kecil, Kabupaten Bengkalis, Provinsi Riau: Sebuah Kajian Dialektologi = Language Varieties in Siak Kecil Subdistrict, Bengkalis Regency, Riau Province: A Dialectology Studies