http://openlearn.open.ac.uk/mod/oucontent/view.php?id=398888

http://en.wikipedia.org/wiki/Interpersonal_skills

http://ipa.typeit.org/

Editor-in-chief: tổg biên tập Deputy Editor-in-chief: phó TBT Editor:biên tập chính English consultant: BTV tiếng anh Art Direction:thiết kế mỹ thuật

1 - Single (also: singleton, sole, only, etc.) 2 - Double (also: pair, twice) 3 - Triple (also: triplet, treble, thrice, threesome, troika, trio) 4 - Quadruple 5 - Quintuple or Pentuple 6 - Sextuple or Hextuple 7 - Septuple 8 - Octuple 9 - Nonuple 10 - Decuple 100 - Centuple tớ trộm sr nha

2nd highest population/13th highest/among /average population density A: nations and territories

 Year-on-year :so với cùng kỳ năm ngoái:

changes are changes in levels expressed over the corresponding period (month or quarter in relation to the frequency of the data) of the previous year.