http://techtalk.vn/nhung-thoi-quen-xau-lam-kim-ham-su-tien-bo-cua-cac-lap-trinh-vien-moi-bat-dau-lam-chua-lau-ma-toi-da-nhan-ra-trong-khi-kem-cap-ho.html
https://medium.com/the-mission/40-things-about-life-i-wish-i-could-travel-back-in-time-and-tell-myself-e52f2effa3ab#.rs1x9oaih
https://khmt.wordpress.com/2016/08/22/mastering-programming/
