“…Seven articles were published in 2017 (Ab Talib et al, 2017;Butt et al, 2017;Elias et al, 2017;Othman et al, 2017;Rahman et al, 2017;K. H. Tan et al, 2017; C. N. L. Tan et al, 2017), six were published in 2018 (Abdullah & Oseni, 2017;Ab Talib & Ai Chin, 2018;Baharuddin & Ismail, 2018;Fard & Amiri, 2018;Khan et al, 2019;Salindal, 2018), three published in 2019 (Karia, 2019;Supian et al, 2019;Zailani et al, 2019), and four articles were published in 2020 (Hendayani & Febrianta, 2020;Katuk et al, 2020;Liat et al, 2020;Ratnasari et al, 2020).…”