↑ "Reader Survey: log|x| + C", Tom Leinster, The n-category Café, March 19, 2012 ↑ (Barth 2004), (Carter & Champanerkar 2006) ↑ See Rickey. ↑ (Wildberger 2002) ↑ (Bradley 2003) ↑ Victor J. Katz (1995), "Ideas of Calculus in Islam and India", Mathematics Magazine 68 (3): 163–174 [165–9 & 173–4] ↑ (Struik 1986, pp. 215–216) harv error: no target: CITEREFStruik1986 (help) ↑ (Laubenbacher & Pengelley 1998) harv error: no target: CITEREFLaubenbacherPengelley1998 (help) – see Informal pedagogical synopsis of the Analysis chapter for brief form ↑ See Rickey reference for discussion and further references. ↑ Ball, 281 ↑ Britannica, 171