diff --git a/free-programming-books-pl.md b/free-programming-books-pl.md
index af161770ee5ffdd436628f0195a9c3ba7f550a02..28a54fbf4d470cbe9f01aaf8f640c95b092d541f 100644
--- a/free-programming-books-pl.md
+++ b/free-programming-books-pl.md
@@ -10,6 +10,7 @@
 * [Java](#java)
 * [JavaScript](#javascript)
 * [LaTeX](#latex)
+* [Perl](#perl)
 * [PHP](#php)
 * [Prolog](#prolog)
 * [Python](#python)
@@ -77,11 +78,14 @@
 * [LaTeX. Książka kucharska](http://www.ptm.org.pl/latex-ksiazka-kucharska), Marcin Borkowski, Bartłomiej Przybylski
 * [Nie za krótkie wprowadzeniedo systemu LATEX 2ε](http://www.ctan.org/tex-archive/info/lshort/polish)
 
+### Perl
+* [Wikibooks Perl](https://pl.wikibooks.org/wiki/Perl)
 
 ### PHP
 
 * [PHP](http://pl.wikibooks.org/wiki/PHP)
 * [PHP: The Right Way](http://pl.phptherightway.com/)
+* [Kurs PHP](http://phpkurs.pl/)
 
 
 ### Prolog
@@ -109,3 +113,5 @@
 ### SQL
 
 * [SQL i PL/SQL – podstawy](http://jsystems.pl/storage/sqlplsql1.pdf)
+* [PL/SQL - podstawy (na stronie)](http://andrzejklusiewicz.blogspot.com/2010/11/kurs-oracle-plsql.html)
+* [SQL - podstawy (na stronie)](http://andrzejklusiewicz.blogspot.com/2010/11/kurs-oracle-sql.html)
diff --git a/free-programming-books-zh.md b/free-programming-books-zh.md
index 69eda13fc6d75a6a7b58966ca9518b41854f99c8..4a19ea855912359c56aec11a554db88c68e2e40b 100644
--- a/free-programming-books-zh.md
+++ b/free-programming-books-zh.md
@@ -75,6 +75,7 @@
 * [慕课网](http://www.imooc.com/course/list) (丰富的移动端开发、php开发、web前端、html5教程以及css3视频教程等课程资源)
 * [极客学院](http://www.jikexueyuan.com/)
 * [51CTO学院](http://edu.51cto.com/)
+* [计蒜客](http://www.jisuanke.com/)
 
 
 ### 软件开发方法