For Maths, if you're doing GCE Edexcel get Heinemann books, the're amazing. The original ones even have CDs with worked out solutions to each and every question, or if you don't buy original you can always get the live texts from torrents along with the solutions.
For Science subjects try to read the official books from start to finish; helps a lot. Past papers help too.
---------- Post added at 02:35 AM ---------- Previous post was at 02:18 AM ----------
if you take Further Math;
+Math a level will seem easier, because of what you will study at FP. Especially the core modules.
+additional a levels are always good if you're applying abroad
+If you will sit for entry tests in Pakistan, you will notice that most entry tests will contain a lot of material from Fsc Math, and a lot of that stuff isn't taught at a level Math because they have to make room for mechanics and Statistics modules. But an Fsc syllabus will have some FP Math topics because they don't take any Mechanics and stat topics.
-FP Math is very hard. Nobody requires it in Pakistan and most universities abroad are fine with 3 a levels, except for the very best that are looking for a*s or 4 a's like Imperial or Oxford
-You wont be able to focus as much on your other courses.
---------- Post added at 02:36 AM ---------- Previous post was at 02:35 AM ----------
if you take Further Math;
+Math a level will seem easier, because of what you will study at FP. Especially the core modules.
+additional a levels are always good if you're applying abroad
+If you will sit for entry tests in Pakistan, you will notice that most entry tests will contain a lot of material from Fsc Math, and a lot of that stuff isn't taught at a level Math because they have to make room for mechanics and Statistics modules. But an Fsc syllabus will have some FP Math topics because they don't take any Mechanics and stat topics.
-FP Math is very hard. Nobody requires it in Pakistan and most universities abroad are fine with 3 a levels, except for the very best that are looking for a*s or 4 a's like Imperial or Oxford
-You wont be able to focus as much on your other courses.