0121-1129 0121-1129 S0121-11292018000100093 10.19053/01211129.v27.n47.2018.7806 Ecuador Ecuador Ecuador 00 04 2018 00 04 2018 27 47 93 103

[1] 2016 1-14 [2] 2014 [3] 2014 3 1 1 761-74 [4] 2012 [5] 2014 [6] 2010 [7] 2013 [8] 2009 8 2 2 53-63 [9] 2014 [10] 2014 [11] 2016 183-7 [12] 2017 70 382-90 [13] 2012 [14] 2015 [15] 2015 15-08 [16] 2014 16 [17] 2008 [18] 2016 271 50-68 [19] ULEAM 2017 [20] ISO/IEC 2012 [21] Alberta Education 2016 [22] ISO/IEC 2011 [23] 2013 3 1 1 70-9